The river is classified as a category V contaminated river. Teacher claim that the bad smell often after and during raining.
depends on what chemicals are there, what kind of industry and what water quaility tests can show. that would determine mitigation approaches - if the community depends on the river for water supply, then constructed wetlands (plants taking up heavy metals, organics degradation) followed by slow sand flters have been suggested as economical methods for decades. Together with some end user treatment steps that depends on the chemicals present.
Need to test water quality and air quality of that area and need to see the location of industry and school for relocation possible
Industry in industrial area not in residential area
If relocation is out, probably the best would be to inform and work with industry on their waste treatment issues, possibly getting community or political representatives involved with waste treatment engineers and other appropriate professional help. In many instances, if pollution sources can be highly reduced in volume, through treatment or recycling of waste water within the industry, streams with reduced pollutant loading can begin to recover through dilution, filtration and flushing of pollutants. Of course, knowledge of and monitoring of the types of pollution is also important. Waste treatment engineers have a variety of tools that could be applied depending on the specific circumstances. Industries seldom can afford to totally disregard the public and resources, and should be willing to consider implementing reasonable adjustments, controls, mitigations. Becoming familiar with the area water and pollution laws and regulations, civil actions relative to pollution, etc. may also help, and some safety when community, landowners, wildlife, fisheries, and other affected interests unite And complain.
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