1. Microbial Remediation Technology :
Microorganisms in the natural system are not all effective, or do not meet the required concentration. In order to raise the degradation ability of the microorganism in the biodegradation reactor, inoculating bacteria are added to keep and strengthen the activity of the microorganisms in the reactor, and thus to improve the efficiency of biodegradation.

The microorganisms used in bioaugmentation can be got from the original biodegradation system through domestication, enrichment, screening and culture; they can also be the microorganisms not existing in the original biodegradation system. By adding inoculating bacteria, the degradation effect of the organic compounds is strengthened, including direct degradation and co-metabolism of the microorganisms

2. Bio-polymeric Material :
The wide use of bio-polymeric materials is one of the most effective ways to reduce the pollution caused by chemical polymeric materials. All countries around the world have expended great efforts on its research, development, extension and application, thus its prospect is broad.

Biodegradable polymer can return the organic compounds to the nature through compost to achieve and maintain ecological balance. Under the condition that the world resource is nearly exhausted, by making degradation materials through biotechnology, we can no longer rely on petroleum.

1. Fuoshan Sanshui Datang Wastewater Treatment Co., Ltd:

This is the project for dyeing wastewater with the output capacity at 60.000 tons per day. Base on the existed project, we have improved and processed follow the new technology. The treated water reaches the standard grade A.

The principle of treating high coloration and high COD by Bacillus natto microbial preparation:

Bacillus natto which can degrade the organic dyes containing nitro, amino, benzene ring and anthrone are screened by us. After being reformed through biotechnology, they can resist high content dyeing waste water, grow and reproduce quickly, secret flocculation and settle or degrade dye organic to obtain the aim of decolouration .

Bacillus natto can produce various kinds of protease (especially basic alkaline protease), glucosamylase, lipase, amylase, degrade carbohydrate and organic matter into easily small molecule, substances easily absorbed by bacteria to reach the aim of decrease of the COD of the wastewater.

Bên trái-Left : Nước thải trước khi xử lý. Màu cực kỳ đen, mùi rất thối. Nồng độ COD cao hơn 224 lần, BOD5 cao hơn 16 lần, N-NH4+ cao hơn 30 lần, H2S cao hơn 9,5 lần so với tiêu chuẩn cấp A của nhà nước. Wastewater before treatment.  It’s extremely black, bad odor. Its CODcs is 224 times higher, BOD5 is 16 times higher, N-NH4+ is 30 times higher, H2S is 9 times higher than the national standard of wastewater with grade A

Bên phải- Right : Nước thải sau khi được xử lý 24 giờ. wastewater after treatment (24 hours)

3. Waste water of Ba Bo canal – Ho Chi Minh city:
On November 16, 2009, the Department of Resources and Environment of Ho Chi Minh city carried out a survey of wastewater in Ba Bo canal. As the result, there is a big quantity of industrial wastewater has eliminated into this canal. The source of this polluted wastewater is spreading to the underground water of the next areas, this directly threatens peoples’ health.

Along the Ba Bo canal (Binh Chieu ward, Thu Duc district), hundreds of households are living with the bad odor of the polluted canal as well as the polluted well water.

On January 24, 2010, at 5 AM, Thuan Thao company collected sample from this polluted canal for experiment treating.
Following is the testing result of treated water (mg/L). All above results reach the national standard of waste water. The cost of this treating wastewater is low, technology is simple, but it is very effective.