This document summarizes a pilot study that assessed an innovative technology called the EOS-2000 for reducing sediment accumulation and improving water quality in a stormwater retention pond. The EOS-2000 was deployed from September to December 2015 and increased dissolved oxygen levels and oxidation reduction potential in the pond, stimulating aerobic bacterial activity in the sediments. This resulted in the digestion of 7.9-12.6% of sediments over just 3 months, equivalent to 1,175-1,863 cubic meters of sediment loss. Water clarity also improved by 218% and aerobic bacterial counts increased by 2-3 orders of magnitude, demonstrating the effectiveness of the technology in enhancing respiration and slowing sediment accumulation.
Case study: Algae Control in Drinking Water ReservoirLG Sonic
Since the spring of 2014, four solar-powered algae control buoys are operating in the Canoe Brook Reservoir #1 in Short Hills, New Jersey to control algae and cyanobacteria in the raw water reservoir. The reservoir is managed by American Water, America’s largest publicly traded water and wastewater utility company.
Lead accumulation in White-Mangrove, Avicenniaalba (Blume), inhabiting densel...Innspub Net
Coastal area of East Java Sea has long been threatened by industrial source pollution, mangrove conversion into shrimp culture, over fishing, destructive fishing, sedimentation, and coastal settlement. Heavy-metal is probably the most threat that directly influencing human health. This study was carried out in two coastal areas considered central to the threat, Kedawang and GunungAnyar. Lead concentration was measured in the water, sediments, and white-mangrove, Avicenniaalba. It showed that heavy-metal has been accumulated in the sediments. Root of mangrove tree can up take and bio-concentrating this lead heavy metal up to 5.74 mg kg-1 dry weight. The concentration in the leaves and seeds were significantly lower as it frequently exuviate, drop down, and regenerated. This metal concentration was higher than the allowable concentration (Ministerial Decree of State Environment No. 51 year 2004). Measures have to be taken in order to maintain coastal area healthy for human population.
Get the full articles at: http://www.innspub.net/volume-6-number-5-may-2015-jbes/
Trace Metals Concentration in Shallow Well Water in Enugu Metropolispaperpublications3
Abstract: This work assesses the concentration of heavy metals in Enugu Municipal well-water considering the fact that some Enugu inhabitants depend on well-water as their major source of water supply. Water from twenty four (24) different hand dug wells from six locations were investigated for Zn, Cu, Pb, Mn, Cd, and Fe using Atomic Absorption Spectroscopy (AAS). The result of the study expressed as the means and standard deviations were compared to WHO and EU standards for drinking water, and it was found that well waters from Iva-Valley and Uwani areas suffer from Cd and Mn pollution. The remaining four locations (Emene, Asata, Abakpa Nike and Achara Layout) were all free from Cd and Mn pollution. Cu, Zn, Fe and Pb concentrations were either completely absent or below world threshold limits at all the locations.
Metal Removal Units (MRUs, Wetlands in a Box) for AMD and Nutrient Cycling, C...Colin Lennox
What is a wetland in a box? Come, discover this most ancient of techniques (2012) and see the wonders of self selection and natural attenuation in real time!!
Quantitative water quality survey of wetland habitats at a contaminated brown...David Bryan
Lancashire Wildlife trust has implemented a number of wetland improvement projects that have the joint purpose of improving the habitability and enhancing flood retention capacity in a heavily degraded post-industrial site. Current monitoring networks are entirely focussed upon ecological parameters and have completely neglected water quality factors. A quantitative water quality survey of the site will be performed to assess the extent to which wetlands can remediate contaminated water and improve overall water quality.
Case study: Algae Control in Drinking Water ReservoirLG Sonic
Since the spring of 2014, four solar-powered algae control buoys are operating in the Canoe Brook Reservoir #1 in Short Hills, New Jersey to control algae and cyanobacteria in the raw water reservoir. The reservoir is managed by American Water, America’s largest publicly traded water and wastewater utility company.
Lead accumulation in White-Mangrove, Avicenniaalba (Blume), inhabiting densel...Innspub Net
Coastal area of East Java Sea has long been threatened by industrial source pollution, mangrove conversion into shrimp culture, over fishing, destructive fishing, sedimentation, and coastal settlement. Heavy-metal is probably the most threat that directly influencing human health. This study was carried out in two coastal areas considered central to the threat, Kedawang and GunungAnyar. Lead concentration was measured in the water, sediments, and white-mangrove, Avicenniaalba. It showed that heavy-metal has been accumulated in the sediments. Root of mangrove tree can up take and bio-concentrating this lead heavy metal up to 5.74 mg kg-1 dry weight. The concentration in the leaves and seeds were significantly lower as it frequently exuviate, drop down, and regenerated. This metal concentration was higher than the allowable concentration (Ministerial Decree of State Environment No. 51 year 2004). Measures have to be taken in order to maintain coastal area healthy for human population.
Get the full articles at: http://www.innspub.net/volume-6-number-5-may-2015-jbes/
Trace Metals Concentration in Shallow Well Water in Enugu Metropolispaperpublications3
Abstract: This work assesses the concentration of heavy metals in Enugu Municipal well-water considering the fact that some Enugu inhabitants depend on well-water as their major source of water supply. Water from twenty four (24) different hand dug wells from six locations were investigated for Zn, Cu, Pb, Mn, Cd, and Fe using Atomic Absorption Spectroscopy (AAS). The result of the study expressed as the means and standard deviations were compared to WHO and EU standards for drinking water, and it was found that well waters from Iva-Valley and Uwani areas suffer from Cd and Mn pollution. The remaining four locations (Emene, Asata, Abakpa Nike and Achara Layout) were all free from Cd and Mn pollution. Cu, Zn, Fe and Pb concentrations were either completely absent or below world threshold limits at all the locations.
Metal Removal Units (MRUs, Wetlands in a Box) for AMD and Nutrient Cycling, C...Colin Lennox
What is a wetland in a box? Come, discover this most ancient of techniques (2012) and see the wonders of self selection and natural attenuation in real time!!
Quantitative water quality survey of wetland habitats at a contaminated brown...David Bryan
Lancashire Wildlife trust has implemented a number of wetland improvement projects that have the joint purpose of improving the habitability and enhancing flood retention capacity in a heavily degraded post-industrial site. Current monitoring networks are entirely focussed upon ecological parameters and have completely neglected water quality factors. A quantitative water quality survey of the site will be performed to assess the extent to which wetlands can remediate contaminated water and improve overall water quality.
EcoIslands LLC wetland bioreator, the Metal Reclamation Unit (MRU), can pull over 200grams of manganese oxides a day per cubic meter. Please check out this presentations, and others, to find out what other metals, non-metals, and agricultural nutrients we can sequester and recycle with MRU.
Natural Attenuation of AMD Generated Total Iron using Metal Reclamation Units...Colin Lennox
EcoIslands has advanced its Metal Reclamation Units capabilities to another level! See how we remove 800 grams of total Iron a day per cubic yard of totally passive treatment in net acidic waters.
COAL COMBUSTION FROM POWER PLANT INDUSTRY IN MISAMIS ORIENTAL, PHILIPPINES: A...Angelo Mark Walag
The rising demand of energy in the Philippines paved way for the proliferation of different
power sources, a more dependable energy source which is coal – based thermal power plant. The disposal
of coal combustion products in ponds and landfills is a great concern because of its leachability. It can
become a problem when elements from the ash are leached contaminating groundwater sources. The main
goal of this research is to determine the concentration of heavy metals in the groundwater sources leached
from coal combustion products and the to assess the physico-chemical parameters of water quality. Standard
methods were employed in collection and determination of the pH, color, alkalinity, odor and temperature
and the heavy metals; As, Cd, Cr, Cu, Pb, Mn, and Hg. Mn was found to have the highest concentration
while Hg has the least concentration. The concentrations of heavy metals follow the trend Hg < Cd < Cu =
Pb< Cr < As <Mn. Concentrations of heavy metals were detected but not excessive enough to be over the
permissible limit set in the Philippine National Standards for Drinking Water thus making the groundwater
potable with regards to the measured parameters in the study.
West Falmouth Nitrogen-Reducing Septic System Demonstration Project - May 201...Buzzards Bay Coalition
The West Falmouth Nitrogen-Reducing Septic System Demonstration Project illustrates how nitrogen pollution can be reduced by upgrading on-site septic systems and cesspools.
A B S T R A C T
Urban stormwater lakes in cold regions are ice-covered for substantial parts of the winter. It has long been considered that the ice-covered period is the “dormant season,” during which ecological processes are inactive. However, little is known about this period due to the historical focus on the open-water season. Recent pioneering research on ice-covered natural lakes has suggested that some critical ecological processes play out on the ice. The objective of this study was to investigate the active processes in ice-covered stormwater lakes. Data collected during a two-year field measurement program at a stormwater lake located in Edmonton, Alberta, Canada were analyzed. The lake was covered by ice from November to mid-April of the following year. The mean value of chlorophyll-a during the ice-covered period was 22.09% of the mean value for the open-water season, suggesting that primary productivity under ice can be important. Nitrogen and phosphorus were remarkably higher during the ice-covered period, while dissolved organic carbon showed little seasonal variation. Under ice-covered conditions, the total phosphorus was the major nutrient controlling the ratio of total nitrogen to total phosphorus, and a significant positive correlation existed between total phosphorus and chlorophyll-a when the ratio was smaller than 10. The results provide preliminary evidence of the critical nutrient processes in the Stormwater Lake during the ice-covered period.
The Green Bay Saga: Research for Management of a Freshwater EstuaryPaul A. Wozniak
Review of 40 years of research on the ecosystem of Green Bay, Lake Michigan, USA; prepared primarily by HJ "Bud" Harris, emeritus professor of ecoystems analysis, Univ of Wisconsin-Green Bay, with help from Paul A. Wozniak, Fox River historian
Invited lightning talk at the 2017 AWRA National Meeting in Portland, OR. Summarizes the work that I did in developing laser-based water level sensors at the University of Florida.
Modeling of Predictive interaction of Water Parameters in Groundwaterijtsrd
The assessment presented in this article is centred on investigating the interaction of turbidity, total suspended solids and total dissolved solids interaction within the water bearing aquifer of Obite to Oboburu communities of Ogba/ Egbema/ Ndoni local government area of Rivers State, Nigeria. Experimental and modeled turbidity, total suspended solids and total dissolved solids investigated are within recommended standard of World Health Organization revealing the reliability of model equation in predicting groundwater parameters distribution upon influence of time, recharge, flow rate. Ottos C. G | Isaac E. O"Modeling of Predictive interaction of Water Parameters in Groundwater" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd11292.pdf http://www.ijtsrd.com/engineering/civil-engineering/11292/modeling-of-predictive-interaction-of-water-parameters-in-groundwater/ottos-c-g
EcoIslands LLC wetland bioreator, the Metal Reclamation Unit (MRU), can pull over 200grams of manganese oxides a day per cubic meter. Please check out this presentations, and others, to find out what other metals, non-metals, and agricultural nutrients we can sequester and recycle with MRU.
Natural Attenuation of AMD Generated Total Iron using Metal Reclamation Units...Colin Lennox
EcoIslands has advanced its Metal Reclamation Units capabilities to another level! See how we remove 800 grams of total Iron a day per cubic yard of totally passive treatment in net acidic waters.
COAL COMBUSTION FROM POWER PLANT INDUSTRY IN MISAMIS ORIENTAL, PHILIPPINES: A...Angelo Mark Walag
The rising demand of energy in the Philippines paved way for the proliferation of different
power sources, a more dependable energy source which is coal – based thermal power plant. The disposal
of coal combustion products in ponds and landfills is a great concern because of its leachability. It can
become a problem when elements from the ash are leached contaminating groundwater sources. The main
goal of this research is to determine the concentration of heavy metals in the groundwater sources leached
from coal combustion products and the to assess the physico-chemical parameters of water quality. Standard
methods were employed in collection and determination of the pH, color, alkalinity, odor and temperature
and the heavy metals; As, Cd, Cr, Cu, Pb, Mn, and Hg. Mn was found to have the highest concentration
while Hg has the least concentration. The concentrations of heavy metals follow the trend Hg < Cd < Cu =
Pb< Cr < As <Mn. Concentrations of heavy metals were detected but not excessive enough to be over the
permissible limit set in the Philippine National Standards for Drinking Water thus making the groundwater
potable with regards to the measured parameters in the study.
West Falmouth Nitrogen-Reducing Septic System Demonstration Project - May 201...Buzzards Bay Coalition
The West Falmouth Nitrogen-Reducing Septic System Demonstration Project illustrates how nitrogen pollution can be reduced by upgrading on-site septic systems and cesspools.
A B S T R A C T
Urban stormwater lakes in cold regions are ice-covered for substantial parts of the winter. It has long been considered that the ice-covered period is the “dormant season,” during which ecological processes are inactive. However, little is known about this period due to the historical focus on the open-water season. Recent pioneering research on ice-covered natural lakes has suggested that some critical ecological processes play out on the ice. The objective of this study was to investigate the active processes in ice-covered stormwater lakes. Data collected during a two-year field measurement program at a stormwater lake located in Edmonton, Alberta, Canada were analyzed. The lake was covered by ice from November to mid-April of the following year. The mean value of chlorophyll-a during the ice-covered period was 22.09% of the mean value for the open-water season, suggesting that primary productivity under ice can be important. Nitrogen and phosphorus were remarkably higher during the ice-covered period, while dissolved organic carbon showed little seasonal variation. Under ice-covered conditions, the total phosphorus was the major nutrient controlling the ratio of total nitrogen to total phosphorus, and a significant positive correlation existed between total phosphorus and chlorophyll-a when the ratio was smaller than 10. The results provide preliminary evidence of the critical nutrient processes in the Stormwater Lake during the ice-covered period.
The Green Bay Saga: Research for Management of a Freshwater EstuaryPaul A. Wozniak
Review of 40 years of research on the ecosystem of Green Bay, Lake Michigan, USA; prepared primarily by HJ "Bud" Harris, emeritus professor of ecoystems analysis, Univ of Wisconsin-Green Bay, with help from Paul A. Wozniak, Fox River historian
Invited lightning talk at the 2017 AWRA National Meeting in Portland, OR. Summarizes the work that I did in developing laser-based water level sensors at the University of Florida.
Modeling of Predictive interaction of Water Parameters in Groundwaterijtsrd
The assessment presented in this article is centred on investigating the interaction of turbidity, total suspended solids and total dissolved solids interaction within the water bearing aquifer of Obite to Oboburu communities of Ogba/ Egbema/ Ndoni local government area of Rivers State, Nigeria. Experimental and modeled turbidity, total suspended solids and total dissolved solids investigated are within recommended standard of World Health Organization revealing the reliability of model equation in predicting groundwater parameters distribution upon influence of time, recharge, flow rate. Ottos C. G | Isaac E. O"Modeling of Predictive interaction of Water Parameters in Groundwater" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd11292.pdf http://www.ijtsrd.com/engineering/civil-engineering/11292/modeling-of-predictive-interaction-of-water-parameters-in-groundwater/ottos-c-g
ASSESSMENT OF WASTE WATER TREATMENT IN CANAANLAND, OTA, OGUN STATE, NIGERIA.O...Felix Oginni
Effluent from a sewage treatment plant in Covenant University, Canaanland is made to pass through a series of constructed wetland before discharging into a gully that drains into River Iju (also known as Atuara). This river is used as a source of drinking water and also provides food in form of fish for hundreds of thousands of people downstream and eventually enters the lagoon, some 60km away. Effectiveness and adequacy of the wastewater treatment facility in place was assessed in order to improve sanitation within this watershed, thereby alleviating environmental challenges in this coastal region of Nigeria. Waste water is gravity drained to the southwest portion of the campus where the solid is removed and the liquid is allowed to flow through six sets of constructed wetlands, each with four chambers. Within each chamber are water hyacinth plants put in place to remove nutrients from the waster water.
A quick survey of the facility shows the system to be effective in reducing and removing solids and dissolved solids from the waste water. The pH ranged between 6.6 and 6.8, conductivity from 530 to 600, and total dissolved solids (TDS) ranged from 360 – 400 ppm. The data obtained indicate that some modifications need to be made as the waste water treatment system is not very efficient in reducing the amount of TDS and nutrients. The flow rate is considered to be very high from cell to cell, thereby not allowing time for the plants and microbes to reduce the TDS. It is suggested that some method be devised to slow down the flow rate to allow the plants and microbes to work on reducing the TDS. Parameters also also considered included DO, E. Coli. Nitrate and Phosphates.
Darryl Keith, EPA: "Hyperspectral Imager for Coastal Ocean Imagery & Ocean Protection (HICO)." Presented at the 2013 International Space Station Research and Development Conference, http://www.astronautical.org/issrdc/2013.
New "research" by anti-drilling researchers at Johns Hopkins University that purports to show a connection between fracked shale wells in PA and an increase in radon in PA homes. Johns Hopkins Bloomberg School of Public Health researchers rather simplistically say that levels of radon in PA homes have been going up since 2004--when the first Marcellus Shale well was drilled in the state. They also say prior to 2004 levels of radon in PA homes was pretty much steady-state--that it did not increase. Since the "big thing" that's happened over the past decade is a lot of Marcellus drilling, voila, must be those nasty frackers are the source.
A Survey on the Analysis of Dissolved Oxygen Level in Water using Data Mining...IIRindia
Data Mining (DM) is a powerful and a new field having various techniques to analyses the recent real world problems. In DM, environmental mining is one of the essential and interesting research areas. DM enables to collect fundamental insights and knowledge from massive volume of environmental data. The water quality is determining the condition of water in the environment. It represents the concentration and state (dissolved or particulate) of some or all the organic and inorganic material present in the water, together with certain physical characteristics of the water. The Dissolved Oxygen (DO) is one of the important aspects of water quality. The DO is the quantity of gaseous oxygen (O2) incorporated into the water. The DO is essential for keeping the water organisms alive. The amount of DO level in the water can be detected by various methods. The data mining techniques are properly used to find DO Level in the different types of water. A number of DM methods used to analyze the DO level such as Multi-Layer Perceptron, Multivariate Linear Regression, Factor Analysis, and Feed Forward Neural Network. This survey work discusses about such type of methods, particularly used for the analysis of DO level elaborately.
Multidisciplinary Journal Supported by TETFund. The journals would publish papers covering a wide range of subjects in journal science, management science, educational, agricultural, architectural, accounting and finance, business administration, entrepreneurship, business education, all journals
1. ASSESSMENT OF AN INNOVATIVE TECHNOLOGY TO REDUCE
SEDIMENT AND IMPROVE WATER QUALITY IN A STORMWATER POND
Laursen, A.1, Ulhaq, S.2, Bostan, V.1 and Mar9n. D2.
1Ryerson University. Department of Chemistry and Biology. Toronto, Ontario
2WCI Environmental Solu9ons Inc. OJawa, Ontario.
ABSTRACT
WCI Environmental Solu9ons Inc., Toronto Water and Ryerson University partnered to complete a 12-week pilot project to assess changes in sediment and water quality using WCI’s EOS-2000 at the Lower Duck
stormwater (SWMP) reten9on pond in High Park, Toronto. The EOS-2000 operated from September 11, 2015 to December 3, 2015. The EOS-2000 is solar-powered, mobile and requires no infrastructure. Ryerson
monitored for one month pre-installa9on and throughout the project. Dissolved oxygen (DO) increased rapidly at installa9on and stayed above historical values over the treatment period. Oxygen satura9on surpassed
100%. The oxida9on reduc9on poten9al (ORP) increased sharply at start and remained high and stable thereaZer. Aerobic bacteria counts increased 1000 fold. Water clarity improved by 68 cm (218%) and chlorophyll a
reduced by 87%. Between 14 – 23 cm (7.9% – 12.6%) of sediment was digested in only 3 months. Using the EOS-2000 within a SWMP could be an innova9ve and cost-effec9ve alterna9ve that is capable of rejuvena9ng/
extending the life of a SWMP by 8-12 months and in this project demonstrated dredging cost savings of $55,000 to $360,000 (depending on classifica9on of bio-solids removed).
INTRODUCTION
Redox poten9al (ORP) is an important determinant of biological process
- High redox poten9al increases efficiency of carbon metabolism
Dissolved oxygen (DO) is an important contributor to redox poten9al (ORP)
- Aerobic respira9on is the most efficient pathway of carbon metabolism
Relevance à a pond that supports high rates of carbon metabolism in sediment will
accumulate sediment more slowly as the organic carbon is mineralized to CO2
Technology that increases redox, par9cularly DO, can enhance net respira9on in a
pond and slow or reverse the accumula9on of sediments
Goal à reduce the frequency of dredging thereby reducing maintenance costs
OBJECTIVES
1. Determine the effect of treatment by the EOS-2000 on DO and DO satura9on
2. Determine response to increased DO and redox poten9al by aerobic bacteria in
sediments
Ø Using # of ac9ve heterotrophic bacteria as proxy
3. Quan9fy sediment depth over 9me to determine if there is a response to
treatment i.e. diges9on due to increased aerobic bacteria
4. Assess esthe9c water quality through clarity improvement using chlorophyll a and
secchi disc
Pre-installa9on Week 1 Week 2 Week 3 Week 4 Week 6 Week 8 Week 12
Sept 1 Sept
10
Sept 17 Sept 24 Oct 1 Oct 8 Oct 22 Nov 5 Dec 3
O2, Temp X Con9nuous from Sept 14
ORP, pH, cond X X X X X X X X X
Secchi depth X X X X X X X X X
Chlorophyll X X X X X X X X
Bacterial plate counts X X X X X X X X
Nutrients (w & s) X X X X X X X X
Sediment mapping X X X X
Contaminants (sed) X X
RESULTS
• EOS-2000 rapidly increased DO (2 à 8 mg/L) and ORP aZer installa9on; s9mulated aerobic
respira9on in sediments
• 14-23 cm of sludge reduc9on
Ø Ini9al depth 183 cm (es9mated vol 14,823 m3)
Ø Es9mated sediment loss 1,175 m3 – 1,863 m3 (7.9% to 12.6%) in only 3 months
• Aerobic bacteria count increased by 2-3 orders of magnitude
• Water clarity greatly improved (218%)
• Result of enhanced respira9on is reduc9on of sediment organic maJer – rolling back pond
maintenance
Table 1: Data collec.on schedule
Objec.ve 4: Water Clarity
Objec.ve 3: Sediment reduc.on
Objec.ve 1: DO Satura.on
Objec.ve 2: Redox poten.al and Aerobic bacterial counts
