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WHAT IS BLACK ODOR WATER BODY
Black-odor water body is a body of water that has lost its ecological function. The odorous black water is a phenomenon in which water turns black and emits odorous gas. It is a serious phenomenon among environmental pollution, and it severely threats the sustainable development of society and survival of mankind. And the urban odorous black water remarkably influence urban landscape, daily life of citizens.

WHAT IS THE INFLUENCING FACTOR
SOURCE OF POLLUTION
The organic substances that cause black odorous water pollution are mainly composed of C, H, O, N, P, S and other elements, and their composition is particularly complicated. black and odorous water pollution mainly comes from the direct discharge of domestic sewage, the littering of garbage, and the smuggling of industrial wastewater. Excessive pollution results in the imbalance of oxygen supply and oxygen consumption in the water body. The water body is under oxygen and even anaerobic conditions convert pollutants and produce odorous substances such as ammonia nitrogen, hydrogen sulfide, volatile organic acids, and black substances such as iron and manganese sulfide.

Pollution Degree Classification
Characteristic indexMild black odorSevere black odor
transparency (cm)25-10<10
DO (mg/L)0.2-2.0<0.2
ORP(mV)-200-50<-200
NH3-N(mg/L)8.0-15>15
Note: When the water depth is less than 25cm, the transparency is 40% of the water depth.

INDEPENDENT PATENT TECHNOLOGY
The bio-purifier for river & lake is a bioremediation system developed by our company for the efficient purification of black odor water and surface water worse than Grade V, which integrates technical characteristics of various river water bioremediation and has a number of research and development patents.

Bio-purifier adopts bio-contact oxidation biomembrane process which combines in-situ microbial activation with special microorganism to form a high-efficiency biomembrane.
Bio-purifier integrates aerobic reoxygenation, hydrolysis acidification, anaerobic treatment, aerobic treatment and other biochemicals.
Bio-purifier has the ability of continuous digestion of water pollutants, gradual improvement of water quality and improvement of water self-purification ability.

JIUWU is a professional Ceramic membrane factory, we provide ceramic membrane solution, china membrane, lake cleaning technology, river cleaning technology and etc. Want to know more? Please contact us.