MANAGEMENT OF WASTE WATER TO VERMICELLI PRODUCTION IN DONG THO VILLAGE, THAI BINH, VIETNAMT PROTECTION FOR DONG THO VILLAGE IN THAI BINH PROVINCE, VIETNAM

Abstract

Dong Tho is a commune of Thai Binh City in Thai Binh province, Vietnam. The major occupation is the production of vermicelli which is made from edible canna. The pollution characteristic of Dong Tho commune is the waste water originated from production process. Water pollution is indicated by the indicators such as TSS, COD, BOD₅ are many times higher than the (QCVN 40: 2011/ BTNMT). Specifically, TSS is 5.8 times higher, COD is 1.70 times higher and BOD₅is 3.28 times higher than the permitted standards. Acidic  pH in waste water only reached 5.3. Interview of local people also important base to assess poluttion level. Methods are used such as methods of collecting and synthesizing data, investigation and fieldwork, analytical methods in the laboratory, statistical methods, data processing, mapping method. With the current pollution situation in Dong Tho vermicelli village, the research proposes some management solutions and techniques of biological waste water treatment. The biological treatment is suitable for local conditions and feasibility, helps to manage, prevent, and reduce environmental pollution of the waste water originated from production process, improve the environment of the village.