Currently, environmental pollution is a hot topic in the newspapers and receives a lot of attention from the people. In particular, the problem of water pollution in Vietnam has been becoming more and more serious. Through the media, we can easily see images, as well as articles reflecting the current environmental situation. Although departments, unions make efforts to call for environmental protection, water resources protection, ... it seems that it is not enough to improve the situation of increasing pollution.
The status of planning of urban areas not linked to the problem of waste treatment, wastewater treatment, ... still exists in big cities, industrial zones, urban areas. .. the environmental box is at an alarming level. It is estimated that out of a total of 183 industrial parks in the country, over 60% of industrial zones do not have a centralized wastewater treatment system. In urban areas, only about 60% - 70% of solids are collected, infrastructure for drainage and wastewater treatment, solids cannot answer the requirements for environmental protection. Most of the wastewater discharged from oil and grease, chemicals, cleaning chemicals, ... is not treated regularly to natural rivers and lakes. An example has been balanced by concern, in the case of the Thi River being polluted by chemicals leaving the house of the Vedan MSG company for 14 consecutive years.
