surface water contamination Articles
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Potential health implications of water resources depletion and sewage discharges in the Republic of Macedonia
Potential health implications of deficient sanitation infrastructure and reduced surface water flows due to climate change are examined in the case study of the Republic of Macedonia. Changes in surface water flows and wastewater discharges over the period 1955–2013 were analyzed to assess potential future surface water contamination trends. Simple model predictions indicated a decline in ...
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Decentralized Wastewater Treatment Solutions for Off-Grid Locations
Efficient, independent plants bring top-quality treatment to even remote areas Every human settlement, regardless of its size or location, requires an effective way of dealing with the wastewater generated by those who live and work there. Discharging untreated or inadequately treated sewage into the environment poses a risk to the environment and human health. It can also have broader ...
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Cryptosporidium spp. andGiardia spp. in surface water supply of Campinas, Southeast BrazilSurface water contaminated by domestic sewage discharges is a potential source of pathogens, including protozoa. During 2005–2006, the source water (Atibaia River) of the Surface Water Treatment Plant (WTP) of Campinas city, São Paulo, Brazil was sampled to obtain an assessment of Cryptosporidium oocyst and Giardia cyst concentrations. Calcium carbonate flocculation (CCF) and membrane filtration ...
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Higher alkyl sulfatase activity required by microbial inhabitants to remove anionic surfactants in the contaminated surface waters
Biodegradation of anionic surfactants, like sodium dodecyl sulfate (SDS) are challenged by some bacteria through the function of the enzyme alkyl sulfatases. Therefore, identifying and characterizing bacteria capable of degrading SDS with high alkyl sulfatase enzyme activity are pivotal. In this study, bacteria isolated from surfactant contaminated river water were screened for their ...
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Dewatering of Industrial Sludge - Case Study
At Ten Cate Protect, town of Nijverdal, The Netherlands, 2006 During the wastewater treatment process at Ten Cate Protect large quantities of sewage sludge are liberated. A couple of days per week this sludge is transported in tanker trucks to a waste disposal plant. On June 14th 2005 a Geotube MDS unit was put in operation at Ten Cate Protect to separate and condense the sludge of the aerobic ...
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Reducing the Costs of Water and Wastewater Treatment Pipelines
When existing infrastructure is ready to be replaced, decentralized treatment can greatly reduce CAPEX and OPEX A stunning two thirds of capital expenditures for conventional wastewater treatment plants can go toward pipelines and pumping stations to maintain flow. Once built, large-scale central treatment plants deliver high quality water and savings through economies of scale, but they are ...
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The sewer system, an undervalued place, that we depend on every day
How Digitizing the Sewer supports Climate Change A good infrastructure, such as our sewer system, is essential for a vital, viable, sustainable and social development of a country’s economy. Not only does it play an important role in sanitation and disease prevention, but the sewer system also plays a crucial role in the sustainability of our planet and the future of our generations . Due ...
By KANDO
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Evaluation of microbial source tracking methods using mixed fecal sources in aqueous test samples
Untitled Document Microbiological source tracking (MST) methods are increasingly being used to identify fecal contamination sources in surface waters, but these methods have been subjected to limited comparative testing. In this study, 22 researchers employing 12 different methods were provided sets of identically prepared blind water samples. Each sample contained one to ...
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Wastewater Use in Crop Irrigation Higher Than Thought
While many farmers around the world rely on wastewater for their crops, the practice can be dangerous without proper treatment and management A recent study reveals that the amount of water originating from urban wastewater used for crop irrigation around the world is much higher than thought. For the first time, researchers decided to assess not only the direct use of wastewater for crop ...
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Bayview Community - Wastewater Treatment System
Formed just after the Civil War, “Bayview” is a 300 year‐old predominately African American community. The residents of the community organized and created the Bayview Citizens for Social Justice In 1998. The group formed partnerships to improve the lives of the community by installing a water and wastewater treatment system. Funding came from multiple Federal. State and County ...
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Study: Wastewater Use in Crop Irrigation Higher Than Thought
Many farms in countries including China are highly reliant on wastewater for irrigation, which may affect public safety. While many farmers around the world rely on wastewater for their crops, the practice can be dangerous without proper treatment and management A recent study reveals that the amount of water originating from urban wastewater used for crop irrigation around the world is much ...
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Quaker oats uses skimmer to reduce wastewater BOD
The Quaker Oats plant in Peterborough, Ontario, Canada produces some seven million cases of Harvest Crunch® cereal and cake mixes annually. In the process, residue from the conveyors, dryers and other processing equipment ends up on the floor. Periodic equipment washdowns add water to the solid and liquid residue, which contains edible fats, starches and sugars. During house-cleaning operations, ...
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