The document discusses appropriate decentralized wastewater treatment technologies for rural areas, focusing on Earthizenz Ecofriendly Systems' approach. The system utilizes a baffled reactor for primary treatment, followed by an anaerobic filter and horizontal planted filter for secondary treatment. Vetiver grass is incorporated into treatment ponds and filters to further improve water quality. Case studies demonstrate applying the system across villages by locating primary treatment units near homes and using natural areas like streams for secondary treatment wetlands planted with Vetiver.
The CAWT's Dr. Gordon Balch's presentation to the Alberta Onsite Wastewater Management Association (March 2015).
Emerging Technologies in Onsite Wastewater Treatment.
The CAWT's Dr. Gordon Balch's presentation to the Ontario Association of Sewage Industry Services (OASIS) from October 2014.
Treatment Options for Wastewaters Collected from On-Site Systems
The CAWT's Dr. Barbara Siembida-Losch's presentation to the Annual Ontario Onsite Wastewater Association Conference (March 2015).
Insight into Innovative Decentralized Wastewater Technologies.
Deals with UASB reactors for the primary treatment of sewage, stabilization of sludge and removal of BOD. Various components of a UASB reactor are described and design details are included. Modifications to UASB such as UASB ponds, Anaerobic baffle reactors, migrating blanket reactors are also described here.
Upflow Anaerobic Sludge Blanket (UASB) Treatment of SewageAravind Samala
TREATMENT OF SEWAGE BASED ON UASB PROCESS. Up flow anaerobic sludge blanket process (UASB),was developed by Lettinga and his co-workers in Holland in the early 1970's
Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater.
The major objectives of the UASB process is:
Pre sedimentation anaerobic wastewater treatment and final sedimentation including sludge stabilization are essentially combined in one reactor making it most attractive high-rate wastewater treatment option.
To produce by products like Methane enriched biogas and nutrient rich sludge.
This is the presentation at an international conference, ICOMACE at KGRCET, Hyderabad.. the title of the paper is design of domestic sewage treatment plant for a growing town Ulavapadu, Andhra Pradesh, Andhra Pradesh, India.
The CAWT's Dr. Gordon Balch's presentation to the Alberta Onsite Wastewater Management Association (March 2015).
Emerging Technologies in Onsite Wastewater Treatment.
The CAWT's Dr. Gordon Balch's presentation to the Ontario Association of Sewage Industry Services (OASIS) from October 2014.
Treatment Options for Wastewaters Collected from On-Site Systems
The CAWT's Dr. Barbara Siembida-Losch's presentation to the Annual Ontario Onsite Wastewater Association Conference (March 2015).
Insight into Innovative Decentralized Wastewater Technologies.
Deals with UASB reactors for the primary treatment of sewage, stabilization of sludge and removal of BOD. Various components of a UASB reactor are described and design details are included. Modifications to UASB such as UASB ponds, Anaerobic baffle reactors, migrating blanket reactors are also described here.
Upflow Anaerobic Sludge Blanket (UASB) Treatment of SewageAravind Samala
TREATMENT OF SEWAGE BASED ON UASB PROCESS. Up flow anaerobic sludge blanket process (UASB),was developed by Lettinga and his co-workers in Holland in the early 1970's
Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater.
The major objectives of the UASB process is:
Pre sedimentation anaerobic wastewater treatment and final sedimentation including sludge stabilization are essentially combined in one reactor making it most attractive high-rate wastewater treatment option.
To produce by products like Methane enriched biogas and nutrient rich sludge.
This is the presentation at an international conference, ICOMACE at KGRCET, Hyderabad.. the title of the paper is design of domestic sewage treatment plant for a growing town Ulavapadu, Andhra Pradesh, Andhra Pradesh, India.
This is a power point presentation on design of a 30 MLD sewage treatment plant. It includes the different characteristics of waste water,various treatment units, design results and a layout of sewage treatment plant.
Visit my slide share channel for downloading report of this project.
Introduction: Wastewater flow and its characteristics, Wastewater collection systems, Estimation and variation of wastewater flows. Problems of industrial wastewaters, sampling protocol, equalization, neutralization, proportioning processes, volume and strength reduction. Preliminary, primary, secondary and tertiary wastewater treatment processes. Theory
and design of screens, grit chambers, sedimentation, coagulation, flocculation
High organic loaded wastes and wastewater creates environmental pollution. The textile wastewater is a serious environmental challenge faced by Bangladesh textile sub sector. The textile wastewater contains organic compounds and synthetic chemicals. Certain chemicals which are used in the textile industry cause environmental or health problems. Due to presence of chemicals, it cause instance allergic skin reaction or even cause cancer. Environmental degradation by the industrial sector is a matter of serious concern in Bangladesh. Textile processing industries is one of the most important industries of Bangladesh with regard to production, export and labor force employment. The major raw material for textile processing is grey fabric and most of materials consist of cotton and blended fabric. Textile processing employs a variety of chemicals depending on the nature of raw material and products such as; enzymes, detergents, dyes, acids, soda and salt. The textile wastewater is a highly polluted in terms of organic matter and suspended matter such as fibers, grease and chemicals. The textile wastewater is usually hot and alkaline with strong smell and color due to use of chemicals dyes. Studies reveled that wastewater from textile industry is highly toxic and has inhibitory effects on an activated sludge and nitrification.
Upflow anaerobic sludge blanket (UASB) technology, normally referred to as UASB reactor, is a form of anaerobic digester that is used in the treatment of wastewater.
The UASB reactor is a methanogenic (methane-producing) digester that evolved from the anaerobic clarigester. A similar but variant technology to UASB is the expanded granular sludge bed (EGSB) digester. A diagramatic comparison of different anaerobic digesters can be found here.
UASB uses an anaerobic process whilst forming a blanket of granular sludge which suspends in the tank. Wastewater flows upwards through the blanket and is processed (degraded) by the anaerobic microorganisms. The upward flow combined with the settling action of gravity suspends the blanket with the aid of flocculants. The blanket begins to reach maturity at around 3 months. Small sludge granules begin to form whose surface area is covered in aggregations of bacteria. In the absence of any support matrix, the flow conditions creates a selective environment in which only those microorganisms, capable of attaching to each other, survive and proliferate. Eventually the aggregates form into dense compact biofilms referred to as "granules".A picture of anaerobic sludge granules can be found here.
Biogas with a high concentration of methane is produced as a by-product, and this may be captured and used as an energy source, to generate electricity for export and to cover its own running power. The technology needs constant monitoring when put into use to ensure that the sludge blanket is maintained, and not washed out (thereby losing the effect). The heat produced as a by-product of electricity generation can be reused to heat the digestion tanks.
The blanketing of the sludge enables a dual solid and hydraulic (liquid) retention time in the digesters. Solids requiring a high degree of digestion can remain in the reactors for periods up to 90 days. Sugars dissolved in the liquid waste stream can be converted into gas quickly in the liquid phase which can exit the system in less than a day.
WWE CH-4 Planning for wastewater treatment and its reclamation.pptxTadviDevarshi
Indian standards for disposal of treated wastewaters on land and in natural streams, Agricultural irrigation, Ground water recharge, Treated wastewater reclamation and reuse, Introduction to duckweed pond, vermiculture and root zone technology for wastewater treatment, Special treatments, Recent technologies of treatment.
DESIGN OF A 30 MLD SEWAGE TREATMENT PLANT(PROJECT REPORT) Ratnesh Kushwaha
This is a project report on design of a 30 MLD sewage treatment plant. It includes the different characteristics of waste water, various treatment units, design calculations and a layout of sewage treatment plant. This report also includes the future scope of this project.
Visit my slide share channel for downloading power point presentation of this project
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
This is a power point presentation on design of a 30 MLD sewage treatment plant. It includes the different characteristics of waste water,various treatment units, design results and a layout of sewage treatment plant.
Visit my slide share channel for downloading report of this project.
Introduction: Wastewater flow and its characteristics, Wastewater collection systems, Estimation and variation of wastewater flows. Problems of industrial wastewaters, sampling protocol, equalization, neutralization, proportioning processes, volume and strength reduction. Preliminary, primary, secondary and tertiary wastewater treatment processes. Theory
and design of screens, grit chambers, sedimentation, coagulation, flocculation
High organic loaded wastes and wastewater creates environmental pollution. The textile wastewater is a serious environmental challenge faced by Bangladesh textile sub sector. The textile wastewater contains organic compounds and synthetic chemicals. Certain chemicals which are used in the textile industry cause environmental or health problems. Due to presence of chemicals, it cause instance allergic skin reaction or even cause cancer. Environmental degradation by the industrial sector is a matter of serious concern in Bangladesh. Textile processing industries is one of the most important industries of Bangladesh with regard to production, export and labor force employment. The major raw material for textile processing is grey fabric and most of materials consist of cotton and blended fabric. Textile processing employs a variety of chemicals depending on the nature of raw material and products such as; enzymes, detergents, dyes, acids, soda and salt. The textile wastewater is a highly polluted in terms of organic matter and suspended matter such as fibers, grease and chemicals. The textile wastewater is usually hot and alkaline with strong smell and color due to use of chemicals dyes. Studies reveled that wastewater from textile industry is highly toxic and has inhibitory effects on an activated sludge and nitrification.
Upflow anaerobic sludge blanket (UASB) technology, normally referred to as UASB reactor, is a form of anaerobic digester that is used in the treatment of wastewater.
The UASB reactor is a methanogenic (methane-producing) digester that evolved from the anaerobic clarigester. A similar but variant technology to UASB is the expanded granular sludge bed (EGSB) digester. A diagramatic comparison of different anaerobic digesters can be found here.
UASB uses an anaerobic process whilst forming a blanket of granular sludge which suspends in the tank. Wastewater flows upwards through the blanket and is processed (degraded) by the anaerobic microorganisms. The upward flow combined with the settling action of gravity suspends the blanket with the aid of flocculants. The blanket begins to reach maturity at around 3 months. Small sludge granules begin to form whose surface area is covered in aggregations of bacteria. In the absence of any support matrix, the flow conditions creates a selective environment in which only those microorganisms, capable of attaching to each other, survive and proliferate. Eventually the aggregates form into dense compact biofilms referred to as "granules".A picture of anaerobic sludge granules can be found here.
Biogas with a high concentration of methane is produced as a by-product, and this may be captured and used as an energy source, to generate electricity for export and to cover its own running power. The technology needs constant monitoring when put into use to ensure that the sludge blanket is maintained, and not washed out (thereby losing the effect). The heat produced as a by-product of electricity generation can be reused to heat the digestion tanks.
The blanketing of the sludge enables a dual solid and hydraulic (liquid) retention time in the digesters. Solids requiring a high degree of digestion can remain in the reactors for periods up to 90 days. Sugars dissolved in the liquid waste stream can be converted into gas quickly in the liquid phase which can exit the system in less than a day.
WWE CH-4 Planning for wastewater treatment and its reclamation.pptxTadviDevarshi
Indian standards for disposal of treated wastewaters on land and in natural streams, Agricultural irrigation, Ground water recharge, Treated wastewater reclamation and reuse, Introduction to duckweed pond, vermiculture and root zone technology for wastewater treatment, Special treatments, Recent technologies of treatment.
DESIGN OF A 30 MLD SEWAGE TREATMENT PLANT(PROJECT REPORT) Ratnesh Kushwaha
This is a project report on design of a 30 MLD sewage treatment plant. It includes the different characteristics of waste water, various treatment units, design calculations and a layout of sewage treatment plant. This report also includes the future scope of this project.
Visit my slide share channel for downloading power point presentation of this project
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
Going From Centralized Wastewater Treatment to Decentralized Wastewater Treat...justinwaters014
Decentralized STPs are a fairly new trend that many have not caught onto yet. However, it is clear that this method can make great contributions to the conservation of water and in better quality treated wastewater. We’re open to all kinds of questions and opinions on this subject for those interested to discuss this further with us. So feel free to send us an email and we will respond accordingly! - www.bgwaterfilter.com
Water conservation & management in rural Punjab_S.R. Aggarwal_Deptt. of Water...India Water Portal
How Punjab is planning to cover the villages with piped water supply and improved sanitation through World Bank funding and community-based behavioural changes. A presentation by Er. S.R. Aggarwal, Chief Technical Coordinator, Deptt. of Water Supply & Sanitation, Govt of Punjab, at an event on water conservation organised by PHD Chamber of Commerce on August 19, 2015.
The improved sequential batch reactor is a process of treating waste water economically. In short the sewage is generated by residential, commercial, industrial establishments. Improved Sequential Batch reactor process improves the quality of waste water . The waste water coming from toilets, baths, kitchens, and sinks draining into the sewers. The waste water or sewage from everywhere contaminates to water bodies when it is directly mixed with river, nallah and other water body it also affects on environment. So to overcome from that the best way to treat the sewage properly.Improved sequential batch reactors a type of activated sludge process in which the waste water is treated by mechanically in batches in reactors . Sometimes it includes Combi treat unit, and this combi treat unit is a power saving as well as power generating sequential batch reactor technology. This technology has been studied and recommended by reputed Indian Research Institutions such as Indian institute Technology and numerous consultants in the field. Attention has to be paid to the fact that suspended solids are always present in the effluent.
Citation: Megha Gidde , PimpriChinchwad Polytechnic; Raveena Chavan ,PimpriChinchwad Polytechnic; Yash Chaudhari ,PimpriChinchwad Polytechnic; Sudhir Ghule ,PimpriChinchwad Polytechnic; Datta Chate ,PimpriChinchwad Polytechnic. "Sequential Batch Reactor." Global Research and Development Journal For Engineering 34 2018: 1 - 3.
Here at ACE DYNAMICS, our innovative, sustainable solutions help our clients to address their Air, Water, Environment, Energy, and Resource management challenges.
Management of Urban Water Supply and Sewerage System
Introduction to Decentralized Sanitation Systems and Fecal Sludge Management / Faecal sludge management Value Chain
CH-2 Activated sludge treatment for wastewaterTadviDevarshi
Physico-chemical and biological treatment strategies and their evaluation, Theory of activated sludge process (ASP), extended aeration systems, trickling filters (TF), aerated lagoons, stabilization ponds, oxidation
ditches, sequential batch reactor, rotating biological contactor, etc., Mass balancing in ASP and TF and their design.
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Appropriiate Technology for Wastewater Treatment In Punjab India
1. Earthizenz ecofriendly systems
Appropriate TechnologiesAppropriate Technologies
for Rural Sanitation:for Rural Sanitation:
Recovery Recycle & ReuseRecovery Recycle & Reuse
of GHGs, Water & Nutrientsof GHGs, Water & Nutrients
M.P. SinghM.P. Singh
B. Tech.(Civil); M.I.E. (Mech.)B. Tech.(Civil); M.I.E. (Mech.)
Earthizenz Ecofriendly SystemsEarthizenz Ecofriendly Systems
email: mpsingh@earthizenz.orgemail: mpsingh@earthizenz.org
Made and presented on behalf of Village Life Improvement
Foundation
2. Earthizenz ecofriendly systems
Need for this WorkshopNeed for this Workshop
Last Year questions were raised on the Simplified Sewerage
Technology being used by the NRI NGOs.
A presentation was given in a similar workshop
The General opinion of the panel present was that choicechoice
between settled or simplified sewerage depended on groundbetween settled or simplified sewerage depended on ground
realities of individual villagesrealities of individual villages
A team of departmental Engineers visited the villages with
Simplified Sewerage was operational.
There was hardly any comment on Simplified Sewerage,
meaning that the carriage o sewage was satisfactory.
There were comments on the quality of effluent, which had
nothing to do with Sewerage systems.
Moreover, the panel asked about the treatment system.
A decision treedecision tree was presented to Zero downZero down on
Appropriate Technology
3. Earthizenz ecofriendly systems
Is Simp. Sew. Cheaper than
Onsite Sanitation?
YES
Is minm. 40LPD per Cap
water available?
YES
Do most houses have Safe
Septic tanks?
NO
SimplifiedSimplified
SewerageSewerage
Can balance houses have
septic tanks? Keeping safe
distances from specified
Structures?
YES
YES
Settled (SmallSettled (Small
Bore) SewerageBore) Sewerage
NO
NO
Is Water Supply
Augmentation Feasable?YES NO
Go ForGo For
onsite San.onsite San.
Decision Tree Sewerage SystemDecision Tree Sewerage System
4. Earthizenz ecofriendly systems
Our Dream Treatment of RuralOur Dream Treatment of Rural
WasteWaste
Energy Neutral SystemEnergy Neutral System
No Random Methane EmissionNo Random Methane Emission
Carbon Neutral SystemCarbon Neutral System
Maximum wastewaterMaximum wastewater
Reuse/RechargeReuse/Recharge
Rainwater Filtration &Rainwater Filtration &
HARVESTHARVEST
Recovery of Energy viaRecovery of Energy via
Biomethanation of Solids and LiquidsBiomethanation of Solids and Liquids
Fertilizer & Energy from SludgeFertilizer & Energy from Sludge
SelfSelf
SustaininSustainin
g Processg Process
No Nitrous Oxide EmissionNo Nitrous Oxide Emission
5. Earthizenz ecofriendly systems
fertilizer production
from finite resources
foodfood
Mixing of flow streams,Mixing of flow streams,
misuse of drinkingmisuse of drinking
water for transportwater for transport
90%90% untreateduntreated
waste disposal inwaste disposal in
water bodieswater bodies
sewagesewage
sludgesludge
Overexploitation ofOverexploitation of
groundwatergroundwater
Current ScenarioCurrent Scenario
Courtesy gtz
GHGGHG
EmissionsEmissions
NN
22
OO
CC
HH
44CC
OO
22
6. Earthizenz ecofriendly systems
Dream ScenarioDream Scenario
Restoring Soil
Fertility
Treatment / Hygienization /
Energy Recovery
Water ReuseWater Reuse
NO Waste Disposal in
Water Bodies
Rainwater HarvestingRainwater Harvesting
food
OrganicOrganic WasteWaste
FaecesFaeces
UrineUrine
GreywaterGreywater
Energy and Fertilizer
Recovery through
Biomethanation
Agricultural
Use
Courtesy gtz
GHGGHG
EmissionsEmissions
NN
22
OO
CC
HH
44CC
OO
22
Em
ission
R
eduction
8. Earthizenz ecofriendly systems
Secondary
Treatment/
Disposal
Primary/
Secondary
Treatment
Primary
Treatment
The System Hitherto @ VLIFThe System Hitherto @ VLIF
1) Septic Tank HRT = 72 Hrs
2) Recirculating Filter ensures minimum
clogging chances.
3) Being Centralized, the septic tank is
preceded by a collecting chamber and
a pump house for dosing Raw Sewage
4) Both Septic Tank And Filter are power
dependent
5) Quality of treatment dependant on
Power continuity
RecirculatingRecirculating
Sand FilterSand Filter
Maturation/Maturation/
Storage PondStorage Pond
CentrlizedCentrlized
Septic TankSeptic Tank
9. Earthizenz ecofriendly systems
The System Hitherto @ GoPThe System Hitherto @ GoP
1)1) The advantage of cost saving inThe advantage of cost saving in
sewerage is lost by having a settlersewerage is lost by having a settler
in every house.in every house.
2)2) Cannot maintain mandatoryCannot maintain mandatory
distances in congested placesdistances in congested places
3)3) Lift Station requires Energy forLift Station requires Energy for
pumpingpumping
4)4) Aeration Tanks are EnergyAeration Tanks are Energy
dependant.dependant.
PrimaryPrimary
Intercepter/ settlerIntercepter/ settler
at Householdat Household
LevelLevel
Lift StationLift Station
SecondarySecondary
TreatmentTreatment
Aeration Tanks and then to polishingAeration Tanks and then to polishing
pondpond
10. Earthizenz ecofriendly systems
1. Waste water from building
2. Sedimentation chamber
3. Pressure pipe sludge
4. Liquid pipe siphon action
5. Settlement chamber
6. Liquid to filtration
7. Infiltration system
8. Composting plant
9. Irrigation/secondary treatment
Post Kyoto Changes in EI Nolson’s (Inventor of
System) Concept of Small Bore System
Not to have aNot to have a
septic tank inseptic tank in
every house butevery house but
one for a clusterone for a cluster
of several housesof several houses
Use the smallUse the small
bore seweragebore sewerage
system aftersystem after
settlementsettlement
A truly HybridA truly Hybrid
SystemSystem
13. Earthizenz ecofriendly systems
The Systems Now in Use @ VLIFThe Systems Now in Use @ VLIF
Decentralised Wastewater Treatment Systems (DEWATS)
DEWATS is based on different natural treatment techniques
put together in different combinations according to need.
In this method the reed bed/Root Zone system acts as a secondary
treatment unit,
Vetiver grass forms part of the Collage of plants
This is preceded by a baffled reactor where most of the treatment
takes place.
The treated water from the reed bed system is stored in a polishing
pond for the aerobic process. Vetiver Floats naturally aerate the
pond
14. Earthizenz ecofriendly systems
Decentrlised Hybrid SystemDecentrlised Hybrid System
DEWATS is based on four basic treatment modules,
which are combined according to specific requirements
Pre-treatment and sedimentation in settlement tank or in
septic tank
Secondary anaerobic treatment in baffled reactors
Aerobic/ anaerobic treatment in reed bed system.
Aerobic treatment in ponds
15. Earthizenz ecofriendly systems
Primary TreatmentPrimary Treatment
• A unit called a settling tank is used for this phase. It isA unit called a settling tank is used for this phase. It is
aa
• sedimentation tank in which settled sludge is stabilisedsedimentation tank in which settled sludge is stabilised
by anaerobic digestion.by anaerobic digestion.
• Dissolved and suspended matter leaves the tankDissolved and suspended matter leaves the tank
untreated.untreated.
• The treatment efficiency of a septic tank is in theThe treatment efficiency of a septic tank is in the
range of 30 per cent BOD removal.range of 30 per cent BOD removal.
• A settling tank can also be incorporated into anA settling tank can also be incorporated into an
anaerobic baffled tank as the first section of a settleranaerobic baffled tank as the first section of a settler
device.device.
16. Earthizenz ecofriendly systems
Secondary TreatmentSecondary Treatment
Baffled reactor is used for this phase.
Several tanks (upflow chambers) are built in
a series to digest degradable Matter.
Baffles guide WW between the chambers
from top to bottom and up againfrom top to bottom and up again.
During the process the fresh influent is
mixed and inoculated for digestion with the
active blanketactive blanket deposit of suspended
particles and microorganismsmicroorganisms
occurring naturally at the bottom of each
chamber in such conditions.
Because of the physical separation of
Chambers, various microorganisms are
present at different stages, allowing high
treatment efficiency
17. Earthizenz ecofriendly systems
Secondary TreatmentSecondary Treatment
• At the end of the treatment device a chamber can be set aside as an
anaerobic filter in order to improve further the treatment efficiency.
• A filter media allowing contact with the sewage stream is used, which is very
efficient in retaining and digesting the remaining pollutants.
• The problem of encountering clogging is minimised due to the digestion and
treatment in the baffled reactor.
• The primary and secondary treatment systems are constructed below
ground level and are built together as a single and compact setup.
• Nearly 90 per cent of the original pollution load is removed at this stage.
Anaerobic filter
18. Earthizenz ecofriendly systems
Anaeroobic
Filter
Planted
Filter
Primary/ Secondary
treatment
The Systems Now in Use @ VLIFThe Systems Now in Use @ VLIF
Anaerobic FilterAnaerobic Filter
(Attachable to(Attachable to
BR.BR.
AnaerobicAnaerobic
Baffled ReactorBaffled Reactor
Horizontal PlantedHorizontal Planted
Filter/ Root Zone/Filter/ Root Zone/
WetlandWetland
19. Earthizenz ecofriendly systems
Combined into One UnitCombined into One Unit
The Settling tank,The Settling tank,
Baffled upflow reactorBaffled upflow reactor
and Anaerobic Filter canand Anaerobic Filter can
be plugged together,be plugged together,
The whole system isThe whole system is
underground and has aunderground and has a
total Hydraulic Residencetotal Hydraulic Residence
time of 8 t0 14 hrs. like thetime of 8 t0 14 hrs. like the
UASB reactorUASB reactor
20. Earthizenz ecofriendly systems
The whole System canThe whole System can
fit in any place and isfit in any place and is
always undergroundalways underground
Small surfaces become available forSmall surfaces become available for
treatment (sidewalks, private yards,treatment (sidewalks, private yards,
parking lots, alleys, parks, etc.)parking lots, alleys, parks, etc.)
In
a Street
In
a Street
21. Earthizenz ecofriendly systems
The right combination and dimension of ModulesThe right combination and dimension of Modules
is important.is important.
22. Earthizenz ecofriendly systems
Tertiary TreatmentTertiary Treatment
• A horizontal planted gravel filter acts through the combined
effect of the filter material and plants growing on the filter
media.
• Usage of sand as the main filter materials was replaced by
pebbles and granite stones.
• The wastewater is resupplied with oxygen while passing
through the planted gravel filter.
• The effluent is odour free. Since baffled reactor is being used
to provide secondary treatment the size of the planted filter is
reduced.
• This leads to a cost reduction, less needed space above
ground
• The use of Vetiver grass alongwith other plants further
increases the efficiency and hence the size.
• Moreover, the issue of N2O emission is effectively taken care
of.
26. Earthizenz ecofriendly systems
Figure 11: Anaerobic treatment and final polishing in constructed wetland producing
tertiary quality effluent. (Journey, W. K. and S. McNiven. 1996.)
33. Earthizenz ecofriendly systems
Original Site for
centralized treatment
with pump house etc
Nullah
Water Course
Four Decentralized sites
chosen for Primary
Treatment, 2 along
Nullah & 2 along water
course
34. Earthizenz ecofriendly systems
Baffled Reactor 1,
along Nullah
Baffled Reactor
2, along Nullah
Baffled
Reactor 3
Baffled
Reactor 4
Natural Wetland
to be modified
with Vetiver for
sec.& Ter
trtmnt.
Vetiver plantation for
final Nutrient uptake,
in water course
Narur Contd.
35. Earthizenz ecofriendly systems
Effluent isEffluent is
currentlycurrently
discharging heredischarging here
into the Beininto the Bein
It is proposed toIt is proposed to
pump the rawpump the raw
Sewage across theSewage across the
Bein for treatmentBein for treatment
herehere
36. Earthizenz ecofriendly systems
Section ofSection of
the Beinthe Bein
Treatment alongTreatment along
the acquired areathe acquired area
long the Beinlong the Bein
37. Earthizenz ecofriendly systems
The BeinThe Bein
PedestrianPedestrian
PathwayPathway
Green CoverGreen Cover
(Vetiver and(Vetiver and
other plants)other plants)
Fruit treesFruit trees
and soiland soil
protectingprotecting
HedgerowsHedgerows
Total treatment can be along theTotal treatment can be along the
length of the Bein.length of the Bein.
The baffled Reactor can beThe baffled Reactor can be
under the pathwayunder the pathway
The Wetland can be in the greenThe Wetland can be in the green
beltbelt
The water can be absorbed byThe water can be absorbed by
the green belt and rows of vetiver.the green belt and rows of vetiver.
38. Earthizenz ecofriendly systems
Original Location ofOriginal Location of
Baffled Reactors andBaffled Reactors and
collection cum treatmentcollection cum treatment
pondpondThe water table was too
high.
The depth of the Baffled
Reactor had to be reduced.
A waterproof liner was
installed.
Treatment with a special
enzyme that will produce
bacteria to reduce Sludge.
Enzyme will also produce
Oxygen producing bacteria
in the pond.
New position ofNew position of
9 chamber9 chamber
reactorreactor
Water bodyWater body
with enzymewith enzyme
treatment andtreatment and
Vetiver floatsVetiver floats
51. Earthizenz ecofriendly systems
Water collected in anWater collected in an
underground waterunderground water
tank and pumped uptank and pumped up
in an overhead tankin an overhead tank
as per need.as per need.