The document discusses granular ferric hydroxide media called FILTERSORB HSR that can remove hydrogen sulfide, arsenic, phosphates, chromium, copper, and selenium from water. It is produced from ferric hydroxide in a granular form and works by binding these contaminants through adsorption and precipitation reactions. The media is suitable for use in various water treatment processes and systems to purify groundwater, surface water, and remove contaminants from drinking water.
Adsorption of arsenic from water - Bayoxide® E 33LANXESS
It is more imperative than ever to have a treatment process capable of effectively removing arsenic from drinking water.
LANXESS has developed an iron oxide with the brand name Bayoxide® E 33 specifically for the removal of arsenic from drinking water and non-drinking water sources. More under www.bayferrox.com
Adsorption of arsenic from water - Bayoxide® E 33LANXESS
It is more imperative than ever to have a treatment process capable of effectively removing arsenic from drinking water.
LANXESS has developed an iron oxide with the brand name Bayoxide® E 33 specifically for the removal of arsenic from drinking water and non-drinking water sources. More under www.bayferrox.com
REVIEW PAPER ON BAUXITE RESIDUE CHARACTERISTICS, DISPOSAL &UTILIZATIONijiert bestjournal
Worldwide bauxite residue disposal areas contain an estimated 2.7 billion tonnes of residue,
increasing by approximately 120 million tonnes per annum. Presently, it is stored on land or in
ocean near alumina refineries. However, its high alkalinity is a potential pollution to water; land
and air of close proximity .meanwhile high cost are associated with a large area of land needed
for storage of residue. In this paper focuses on process of waste generation, its characteristics,
conventional disposal method & bauxite residue utilization in building material glass ceramics,
concrete, bricks, phosphate removal etc.
Raw water coming from different sources contains dissolved salts and un-dissolved or suspended impurities. It is necessary to remove harmful salts dissolved into the water before feeding it to the boiler.
Reverse Osmosis module design and engineering emerged with membrane technology
evolution. In order to understand module design, first membrane configuration needs to be
explored, since the module design is always tailored according to the membrane
characteristics. There is a significant difference between membrane chemistries (most
important ones being cellulose acetate and thin film composite with polyamide barrier
layer), and more importantly, between the different membrane configurations (hollow fine
fiber and flat sheet). Therefore, before looking into detail on the module configuration, the
membrane development needs to be considered.
An overview of the different treatment methods available to remove radionuclides from groundwater/drinking water. Ion exchange, hydrous manganese oxide (HMO), and absorbent media are compared. Created by WRT - Water Remediation Technology, LLC
This presentation discusses the drinking water quality parameters, drinking water quality standards, water quality index and classification of water bodies and standards
In this presentation, we tried to cover all the information regarding Reverse Osmosis technology. We have discussed its different types, major parts of Reverse Osmosis i.e Activated Carbon Bed, Ion Exchange Unit, Cartridge Filter and then at the end design steps of Reverse Osmosis.
REVIEW PAPER ON BAUXITE RESIDUE CHARACTERISTICS, DISPOSAL &UTILIZATIONijiert bestjournal
Worldwide bauxite residue disposal areas contain an estimated 2.7 billion tonnes of residue,
increasing by approximately 120 million tonnes per annum. Presently, it is stored on land or in
ocean near alumina refineries. However, its high alkalinity is a potential pollution to water; land
and air of close proximity .meanwhile high cost are associated with a large area of land needed
for storage of residue. In this paper focuses on process of waste generation, its characteristics,
conventional disposal method & bauxite residue utilization in building material glass ceramics,
concrete, bricks, phosphate removal etc.
Raw water coming from different sources contains dissolved salts and un-dissolved or suspended impurities. It is necessary to remove harmful salts dissolved into the water before feeding it to the boiler.
Reverse Osmosis module design and engineering emerged with membrane technology
evolution. In order to understand module design, first membrane configuration needs to be
explored, since the module design is always tailored according to the membrane
characteristics. There is a significant difference between membrane chemistries (most
important ones being cellulose acetate and thin film composite with polyamide barrier
layer), and more importantly, between the different membrane configurations (hollow fine
fiber and flat sheet). Therefore, before looking into detail on the module configuration, the
membrane development needs to be considered.
An overview of the different treatment methods available to remove radionuclides from groundwater/drinking water. Ion exchange, hydrous manganese oxide (HMO), and absorbent media are compared. Created by WRT - Water Remediation Technology, LLC
This presentation discusses the drinking water quality parameters, drinking water quality standards, water quality index and classification of water bodies and standards
In this presentation, we tried to cover all the information regarding Reverse Osmosis technology. We have discussed its different types, major parts of Reverse Osmosis i.e Activated Carbon Bed, Ion Exchange Unit, Cartridge Filter and then at the end design steps of Reverse Osmosis.
Minnesota Vikings Plan to Keep Quarterback Sam BradfordRobert P. Givens
In his role as a founding partner with Forward Strategy Partners, Robert P. Givens provides government relations, strategic communications, and fundraising advice to corporations, elected officials, and potential candidates. Outside of his professional life, Robert P. Givens loves football, and one of his favorite NFL teams is the Minnesota Vikings.
I) What is ArsenicArsenic is a widely distributed element in .docxsleeperharwell
I) What is Arsenic?
Arsenic is a widely distributed element in the earth's crust and is recognized as a toxic and carcinogenic substance. Arsenic is widely used as a pesticide, herbicide, wood preservative, semiconductor material, and feed additive. These anthropogenic pathways have introduced large amounts of arsenic into the environment, increasing the concentration and distribution of arsenic in environmental water bodies. In recent years, in some countries, especially Bangladesh, China, and Mongolia drinking water sources are found in concentrations that can lead to acute and chronic human poisoning of arsenic. Therefore, the arsenic in drinking water has caused great concern. Given the great danger of arsenic to human health and the increasing severity of arsenic pollution, in 1993, the WHO took the lead in the indicator value of arsenic in drinking water from 50 μg / L to 10 μg / L. Subsequently, the European Union, Japan, the United States, respectively, their drinking water arsenic standards for 10 μg / L.
1. Chemical properties of arsenic in water bodies
In the aqueous environment, the two common oxidation states of arsenic are As(V) and As (III). (As(V) is oxygenated surface water and As (III)is the main form of arsenic in groundwater, while As(III) is the form of arsenic in anoxic groundwater. When the pH was in the neutral range, As(III) was mainly present in the form of H3 AsO3, while As(V) was present in the form of H2 AsO4 – and HAsSO4 2-. Therefore, in the typical pH range of water (pH = 5 to 8), As(V) exists in the form of anions, while As (III) exists in the form of neutral molecules. Therefore, the drinking water arsenic removal technology will involve the removal of arsenic in 2 different
vale nice states and the presence of forms.
2. Research progress of the arsenic removal process
2.1 Coagulation and flocculation method
Coagulation and precipitation method because of its easy to use, easy to grasp, and accept and become the most widely used, the most widely used arsenic drinking water treatment method. The most common coagulants are iron salts and aluminum salts. Many studies have shown that the coagulation and precipitation method in addition to the arsenic effect and the oxidation state of arsenic in water, the initial concentration of arsenic, the type and dose of coagulant, water quality conditions, and other factors. as (Ⅲ) removal effect is poor As (V) removal rate is higher. The oxidation of As (Ⅲ) to As (V) can improve the removal rate of arsenic. When the initial concentration of As (Ⅲ) <0∙8 mg/L, sodium hypochlorite 1∙25 mg/L can effectively oxidize As (Ⅲ) into As (V) to achieve the same removal effect as As (V). (1) If the use of perchlorate coagulant, it can replace the sodium hypochlorite and iron salt 2 reagents to simplify the treatment method and perchlorate oxidation capacity than sodium hypochlorite, potassium permanganate, etc. stronger, in the oxidation process will not produce secondary p.
Fluoride has been an long going issue and there are still researches undergone for its mitigation.Some of the useful technologies that can be applied which are both cost and time effective.These are been carried out for reduction in the fluoride content in ground water and also to provide an better drinking water quality.
Wastewater treatment technologies for removal of nitrogen and phosphorusRabia Aziz
more chemistry contents are available
1. pdf file on Termmate: https://www.termmate.com/rabia.aziz
2. YouTube: https://www.youtube.com/channel/UCKxWnNdskGHnZFS0h1QRTEA
3. Facebook: https://web.facebook.com/Chemist.Rabia.Aziz/
4. Blogger: https://chemistry-academy.blogspot.com/
Environmental Chemistry
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
1. HYDROGEN SULFIDE, PHOSPHATE, COOPER, CHROMIUM,
SELENIUM & ARSENIC REMOVAL MEDIA
Granular Ferric Hydroxide
Based Removal Media
Granular Ferric Hydroxide
Based Removal Media
FILTERSORB HSR®
FILTERSORB HSR®
Leading Manufacturer of Filtration Medias for Water Technology
WATCH FILTRATION TECHNOLOGY
HYDROGEN SULFIDE, PHOSPHATE, COOPER, CHROMIUM,
SELENIUM & ARSENIC REMOVAL MEDIA
Granular Ferric Hydroxide
Based Removal Media
Granular Ferric Hydroxide
Based Removal Media
FILTERSORB HSR®
FILTERSORB HSR®
Leading Manufacturer of Filtration Medias for Water Technology
WATCH FILTRATION TECHNOLOGY
Granular Ferric HydroxideGranular Ferric HydroxideGranular Ferric HydroxideGranular Ferric Hydroxide
2. Hydrogen Sulfide, Arsenic and Phosphates Removal in Drinking Water
watch water technology
FILTERSORBFILTERSORBFILTERSORBHydrogen Sulfide, Arsenic and Phosphates Removal in Drinking Water
FILTERSORBHydrogen Sulfide, Arsenic and Phosphates Removal in Drinking Water®®
Introduction
Hydrogen sulfide is a colorless gas with an offensive stench
and is said to smell like rotten eggs. The gas can be detected
at a level of 2 parts per billion. It is very erosive in a wet
state and become Sox when it is oxidized.
Physical Properties of H2S
Hydrogen sulfide has a structure similar to that of water.
This is where the similarity ends, however. Sulfur is not
nearly as electronegative as oxygen so that hydrogen sulfide
is not nearly as polar as water. Because of this, comparative-
ly weak intermolecular forces exist for H2S and the melting
and boiling points are much lower than they are in water.
Hydrogen sulfide and water boil at - 60.7 °C and +100.0 °C,
respectively.
General Information Filtersorb HSR
Using a patented process, ferric hydroxide can now be produced in a granular form. Various bead
diameters can be made by combination of crushing and sieving procedures. This gives access to a great
variety of new applications of ferric (III) hydroxide.
The Filter media, containing iron hydroxide Fe(OH)3 has an amorphous structure. The ferric ions
content in the filtering media is about 40% by weigh.
Because of its chemical activity, ferric (III) hydroxide is quite appropriate to bind arsenate, phosphate or
sulfide ions in aqueous media. Due to internal high pH of media it has an additional effect of the reac-
tion with H2S and can reach oxidation capacity up to 20% by its dry weight.
Operation Principles
Arsenic and Phosphate removal
In a first step arsenate or phosphate ions in aqueous solutions were adsorptively bounded to the
surface of Filtersorb HSR. Second step is a chemical conversion to stable ferric arsenate or ferric phos-
phate to the surface of Filtersorb HSR.
Fe(OH)3 + H3PO4 > FePO4 + 3 H2O Fe(OH)3 + H3AsO4 > FeAsO4 + 3 H2O
Hydrogen Sulfide removal
Sulfide ions formed from hydrogen sulfide in water are removed in a similar way under precipitation of
hardly soluble ferric sulfide.
2 Fe(OH)3 + 3 H2S > Fe2S3 + 6 H2O
3. Hydrogen Sulfide, Arsenic and Phosphates Removal in Drinking Water
Application:
• Water treatment: Filtersorb HSR media is applicable in a
wide range of water treatment processes, from large-scale
municipal systems to small-scale residential treatment units.
Regardless of the system size, there are operational design
parameters that must be considered to ensure effective,
trouble free performance of the Filtersorb HSR media.
Groundwater or surface water is simply pumped in down
flow mode through a single or multiple fixed bed pressure
vessel containing the Filtersorb HSR media, but it can be
also successfully used in up flow filtration. In down flow
filtration is recommended to use oxygen dosing for better
oxidation. It is also being used in systems to remove Chro-
mium, Cooper, Selenium.
The multiple pressure vessel design is either assembled in
Parallel Flow or Series flow. Flow to each vessel is measured
and totalized to record the volume of water treated. Pressure
differential through each vessel is also monitored.
Periodic backwashing is typically performed at start-up and
after each pressure drop of 0,5-1,0 Bar thereafter depending
on usage and water quality.
• Elimination of Arsenic from drinking water
• Binding of Phosphates from rivers and lakes
• Oxydation of Hydrogen Sulfide in water
• Treatment of contaminated ground water
• Filter beds for the separation of phosphates
compounds in wet lands
• “Reactive barriers” for the confinement of
contamination in depositions
• Binding of nutritive substances in aquarium or
garden pond treatment
watch water technology
Physico-Mechanical properties:
Bulk weight 640 kg/m3
Specific surface 270 m2
/g
Colour dark brown
Mesh size 0,5-2,0 mm, 2,0-4,0 mm
Operation condition and exchange capacity:
Bed depth down flow 450-850 mm
Free board down flow 50-75%
Bed depth up flow 50-100%
Free board up flow 10-50%
Service flow rate 10-20 m/h
Back wash flow rate 25-30 m/h
Total adsorbtion capacity as P4+
15 g/kg
Total adsorption capacity as As 5+
12 g/kg
Oxidation capacity as H2S up to 20% of its dry weight
pH 5-9
Filtersorb HSR
Chemical formula and composition: Amorphous Fe(OH)3
Mineralogical composition: Up to 40% of Ferric Ions from its weight
4. Company presentation:
Since many years Watch GmbH is a leading supplier of high
quality Products for domestic and industrial application
in water treatment technology. As a pollution worldwide
is being increased our company is going to present You a
new concept of Green Chemical Technology with its special
biodegradable 100% chemicals and filtration materials for
drinking, process and waste water technologies
WATCH GREEN PRODUCT RANGE
Filtration material and filtration systems:
Zeosorb (Alumosilicate) – to remove suspended solids up
to 3-5 micron, hardness, ammonium, cesium, nickel, Lead,
Cooper
Titansorb (Titanium dioxide) – to remove Arsenic and other
heavy metals. It is successfully being used as biocide to
disinfect the water
Filtersorb HSR (Iron Hydro-oxide) – to remove Hydrogen Sul-
fide, Arsenic, Phosphor and other heavy metals from water
Greensand FMH (dolomite coated with Manganese dioxide)
– to remove Iron, Manganese and Hydrogen sulfide
Watchox Mn (Manganese dioxide) – to remove Iron, Manga-
nese and Hydrogen sulfide
Filtersorb SP3 (Polymer-carbonate) – modern scale preven-
tion technology based on decarbonization effect
Watch Carbonsorb (bituminous Carbon) – to remove free
chlorine, THM and chloramines
Watchsorb H2O (Polymer) – is a high capacious Superab-
sorber-Polymer, which can store water up to the 1000-fold
of its own net-weight. It is sucessfuly being used in soil for
water storage
Watch Liquid Softener – scale prevention technology and
softening with dosing of Tri-Sodium salts
Filtersorb Calcit – is being used as acidity and CO2 neutral-
ization
Ion exchange resins Watch Ion – SAC, WAC, WBA, SBA, MB, Ultra pure
Watch Membranes – Microfiltration, Ultrafiltration, Nanofiltartion, Reverse Osmosis
Watch Chemicals – chemicals for drinking water, cooling tower, boilers, membrane technology, swimming pools
watch water technology
WATCH GmbH
Mannheimer Straße 8
D 68766 Hockenheim
Telefon: +49 (0)6205 3092 53
Telefax: +49 (0)6205 3092 78
Email: info@watchwater.de
Internet: http://www.watchwater.de
NEWNEWNEW
Watch Liquid Softener
Alternative technology to avoid
scale, based on dosing of Biodegradable
Watch Liquid Softener with specially
made mechanical pumps
Benefits:
100% Efficiency
100% Biodegradability
100% No harmful waste
100% Compatibility for drinking
water processwww.watchwater.de
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