Level of water pollution in industrial zones
In an industrial cluster of a city, water is polluted by industrial wastewater with an estimated total waste water volume of 500,000 m3 per day from paper mills, detergents, dyes, and textiles. In another city, industrial waste water discharged from paper production facilities, pig iron, metallurgy, coal mining; Waste water from paper production has a pH of 8.4-9, and NH4 content is 4mg / 1, high organic content, brown wastewater, bad smell …
Surveying some of iron and steel villages, casting bronze, aluminum, lead, paper and dyeing in localities showed that wastewater of thousands of cubic meters per day was untreated, polluting the water and environment in the area. Besides it, you can visit here for getting more tips for reverse osmosis system.
Water pollution in urban areas is most apparent in densely populated cities. In these cities, domestic wastewater does not have a centralized treatment system but directly discharges the receiving water (rivers, lakes, canals and ditches). On the other hand, there are many establishments that do not process wastewater, most of the hospitals and large medical facilities do not have a wastewater treatment system; Large amounts of solid waste in the city are not collected … are important sources of water pollution. Currently, the level of pollution in canals, rivers, and lakes in big cities is very heavy.
Pollution in the countryside
Water pollution in rural and agricultural production areas, rural population is where infrastructure is backward, most human and animal wastes are not treated. Soak up or be washed away, making the water pollution of organic matter and microorganisms more and higher. In agricultural production, due to the abuse of plant protection drugs, water sources in rivers, lakes, canals and ditches are polluted, affecting the water environment and people’s health.
Due to the lack of planning and non-technical aquaculture, many negative impacts on the water environment were caused. With the use of more and fewer chemicals in aquaculture, the food left over settles down to the bottom of ponds, lakes and river beds, causing the water environment to become contaminated with organic matter, to develop. Some organisms cause disease, and some toxic algae appear; There are even signs of red tide in some coastal areas
The main causes
There are many objective and subjective causes of water pollution, such as population growth, the downside of industrialization, modernization, poor infrastructure, backwardness: People’s awareness on environmental issues is not high … Notably, the inadequacies in environmental management and protection activities. The perception of many levels of government, management agencies, organizations and individuals responsible for environmental protection tasks is not deep enough and full; It is not clear that water pollution is a direct, everyday and difficult way to deal with human life as well as the sustainable development of the country. The regulations on water management and protection are lacking (for example, there are no regulations and technical procedures for water management and protection).
Causes from management rules
Mechanism of division and coordination between agencies, branches, and localities is not synchronous, overlapping, not clearly defined responsibilities. There are no strategies, plans for exploitation, use and protection of water resources in the basin and large territorial areas. There are no rational regulations in financial contribution to management and protection of the water environment, causing a financial shortage and insufficient funds for water environment protection.READ MORE