Contaminated water causes: When pollutants into water bodies can cause deterioration of water quality. Because pollutants into the water within a certain time frame over water self-purification capacity walls. Human activities causing pollution of water bodies. Water pollution caused by industrial emissions of the most serious. Such as industrial waste, pollutants it contains many complex components, not only difficult to purify the water, but also more difficult to handle. Contaminated water quality through analysis will find COD, ammonia nitrogen, phosphorus, nitrite found excessive, low water transparency, more suspended solids in water, the water will not flow in the dead leaves at the emergence of weeds and oil, water pungent odor or smell. Because of the relatively large amount of water, changing the water is generally not used outside of the river way, and in situ remediation methods adopted. Common contaminants: (1) contamination of pathogenic microorganisms: eg Salmonella typhi, Shigella, Vibrio cholera and other epidemic diseases caused by the occurrence or; (2) Oxygen contamination: As oxidative decomposition of large consumption of dissolved oxygen in water, and even turn anaerobic decomposition, smelly black water; (3) acids, bases, salts of inorganic contaminants: sewage, industrial waste water or pesticides, fertilizers and other various acids, bases, salts and other minerals into the water; (4) Plants nutrient pollution: such as zinc, phosphorus, nitrogen seriously overweight make aquatic blooms, water eutrophication; (5) a variety of oil pollution: oil, refinery effluent, restaurants Shaoshui emissions; (6) toxic pollution: Major arsenic, fluoride, lead, mercury, nitrate; pollution (7) radioactive substances: radioactive substances. (8) Thermal pollution: thermal pollution is an energy pollution, it is high temperature industrial and mining wastewater discharge into water bodies caused. Sewage treatment measures: 1, using manual or physical methods to clean up the water leaves weeds, floats, routine maintenance; 2, transform the facility water flow or aeration, increasing the dissolved oxygen content of the water body; 3, using chemical methods for water adsorption settlement of suspended solids, and occasionally performed with chemical algaecides to kill algae; 4, with Microorganisms water body conditioning and improving, the main use of microbial decomposition of organic matter in water and transformation, reduce organic matter in water, COD, ammonia nitrogen, phosphorus, nitrite and other indicators. 5, the control of aquatic plants growing area for absorption of nutrients in water, and the effective management and timely harvesting, transferring nutrients. 6, proper control of aquatic animals, continuity and maintain the diversity of species in the food chain, and to maintain balance. Modern wastewater treatment technology: sewage treatment by treatment degree can be divided into primary, secondary and tertiary treatment. Primary Treatment: The main removal of sewage solids in suspension pollutants, most of the physical treatment method can only be completed primary treatment requirements. After primary treatment of sewage, BOD removal is generally about 30%, reach emission standards. Primary treatment belong to a preprocessing secondary treatment. Primary treatment process: After upgrading sewage through a coarse grid deleted after raw sewage pump upgrade - After gridding or screening rate is - after entering the grit chamber - through sand-water separating sewage into the primary sedimentation tank, more than for a treatment (ie physical treatment). Function is to remove the grit chamber large proportion of inorganic particles. Commonly used grit chamber has advection grit chamber, grit chamber, Dole grit chamber and bell grit chamber. Secondary treatment: The main sewage removal of colloidal and dissolved state was organic pollutants (BOD, COD substances), removal of up to 90%, so that meet emission standards for organic pollutants. Secondary treatment process: from the primary sedimentation tank of water flowing into the biological treatment equipment, activated sludge and biofilm, (which activated sludge aeration tank reactor, oxidation ditch, including biofilm biological filter, rotating biological, bio-contact oxidation and biological fluidized bed), from a biological treatment plant effluent water into the secondary sedimentation tank, secondary sedimentation tank effluent discharged after disinfection or enter tertiary treatment. Tertiary treatment: The main treatment of refractory organic matter, nitrogen and phosphorus can lead to eutrophication of soluble inorganic and so on. The method of biological nutrient removal, coagulation sedimentation, sand ratio, activated carbon adsorption, ion exchange and analysis of electro-osmosis method. Tertiary treatment process: part of the secondary settling tank sludge back to the primary sedimentation tank or biological treatment plant, a part into the sludge thickener, after entering the digester sludge, after dewatering and drying equipment, sludge is finally use . Microbial sewage treatment technologies: biological treatment of sewage effluent is put in a lot of effective microbial strains, prompting the rapid formation of a water body itself balanced ecosystem, including not only biological decomposers, producers of biological, as well as consumers biological, three division Collaboration of pollutants in sewage treatment and more effective utilization and thus can form many food chain, constitute criss food web ecosystems. If you maintain the appropriate quantity ratio and energy ratio between trophic levels, we can establish a good and stable ecological balance of the system. When an amount of sewage into the ecological system, wherein the organic contaminants are bacteria and fungi is not only degradation purification, and degradation of the final product, some inorganic compounds as a carbon source, nitrogen, and phosphate sources, solar energy as an initial involved in metabolic processes in the food web, and from lower trophic levels to higher trophic levels progressively migration and transformation, and finally into advanced life forms product water crops, fish, shrimp, mussels, goose, duck, etc., but by people constantly The removal and comprehensive measures to maintain the ecological balance of the added water, increasing the beautiful natural water features, and achieve the purpose of prevention of eutrophication of water bodies. A microbial treatment of sewage effluent was mainly to remove colloidal and dissolved state organic pollutants (BOD, COD substances), removal of up to 90%, so that meet emission standards for organic pollutants. (1) BOD (biochemical oxygen demand) that "biochemical oxygen demand" or "biological oxygen demand" is an indirect measure of the organic content of the water. Generally refers to a part of easily oxidized organic matter in sewage or 1L water samples tested contained, when the number of milligrams of dissolved oxygen (in units of mg / L) of microbial oxidation and decomposition, the consumption of water. BOD measurement conditions under the general provisions at 20 ℃ 5 days and nights, it is commonly used symbols BOD5. (2) COD (chemical oxygen demand) or chemical oxygen demand, is a simple indirect measure of organic content in water, refers to the number of milligrams of 1L organic substances contained in sewage after oxidizing it with strong oxidizing agents, oxygen consumption (in units of mg / L). Common chemical oxidants K2Cr2O7 or KMnO4. Which commonly K2Cr2O7, thus measured COD with "COD Cr", said. Second, microbial treatment of sewage according to the process condition of oxygen, can be divided into aerobic and anaerobic processing system processing system. 1. aerobic treatment system microorganisms under aerobic conditions, the adsorption of organic matter in the environment, and its decomposition into inorganic oxide, purify sewage, while the synthesis of cellular material. Microbes in the water purification process, in the form of activated sludge and the main ingredient, such as the presence of biofilms. (1), also known as aeration activated sludge process is the use of activated sludge containing aerobic microorganisms under aerobic conditions, so that biological methods of sewage purification. This method is the most important method of organic wastewater treatment today. Refers to the so-called activated sludge floc bacteria, protozoa, organic and inorganic colloids and suspended solids consisting of floc formation. In the sewage treatment process, it has a strong adsorption, oxidation and decomposition of organic matter, or the ability to poison. In the stationary state, but also has good settling properties. Activated sludge microorganisms mainly bacteria, accounting for 90% to 95% of the total number of microorganisms. And mostly in the form zoogloea existence, has a strong ability to remove organic matter, protozoa from indirect purification. According aeration activated sludge process in different ways, many kinds of methods, the most commonly used is completely mixed aeration. After the sewage into the aeration tank, activated sludge bacteria and other microbes multiply, forming a floc floc, constitute the skeleton of activated sludge, protozoa attached to it, filamentous bacteria and fungi are intertwined, forming a granular active microbial population. Aeration tanks constantly inflated, stirring to form a mixture of mud, when the wastewater into contact with the active sludge, organic matter in sewage in a very short period of time to be adsorbed to the activated sludge, the soluble substances directly into the cell. Organic molecules by extracellular enzymes produced by cells to degrade into small molecules and then penetrate the cell. Nutrients into the cells in the cell under the action of enzymes, by a series of biochemical reactions, so that organic matter is converted to C02, H2O and other simple inorganic substances, while producing energy. Microbes intermediate cellular material synthesis and oxidation of energy released in the process of respiration produces, so bacteria multiply. Ongoing microbial biological oxidation of organic matter in sewage declining, the sewage purification. When nutritional deficiencies, microbial oxidation of cells stored substances, and to produce energy, a phenomenon called self-oxidation or endogenous breathing. Aeration tank mixtures with low BOD values ??of inflows sedimentation tanks. Activated sludge through stationary, aggregation, precipitation and separation, the supernatant is treated well water, discharged outside the system. The precipitated part was refluxed for activated sludge aeration tank mixed with the untreated waste water, the process is repeated, the return sludge aeration tank can increase microbiological, biochemical reactions accelerate the process. The remaining sludge vented or other treatment continue to apply. (2) of the Act is based on the biofilm biofilm in order to purify the body's biological treatment. Biofilms are attached to the support surface, to zoogloea mucosal body was formed. Biofilm function and activated sludge in the activated sludge same, the microbial composition is similar. The main principle is to purify sewage biofilm carrier attached to the surface of the water adsorption and oxidation of organic matter decomposition. Biofilm contact with water according to the media in different ways, there are rotating biological method, tower biological filter method. 2. anaerobic treatment system under hypoxic conditions, the use of anaerobic bacteria (including facultative anaerobes) decomposition of organic pollutants in sewage method, also known as anaerobic digestion or anaerobic fermentation. Because methane fermentation products, also known as methane fermentation. This method can eliminate environmental pollution, but also the development of bio-energy, so much of people's attention. Anaerobic digestion of sewage is an extremely complex ecosystem, which involves a variety of flora alternation, each requiring different substrates and conditions, the formation of a complex ecosystem. Methane fermentation includes three stages: a liquefaction stage, production stage hydrogen acetogenic and methanogenic stage. This method is mainly used for processing agricultural and domestic waste or wastewater treatment plant sludge, can also be used to process flour mills, food factories, paper mills, tanneries, alcohol plant, sugar, oil and grease plant, pesticides or petrochemical plant and other plant waste. Third, effective microbial strains put on the number of sewage treatment and use: This product is made by bacteria Bifidobacterium, Lactobacillus, Bacillus, photosynthetic bacteria, yeasts, actinomycetes complex microbial purification from a single species, the total benefit per milliliter one hundred million bacteria count ≥100 CFU. This product uses microbial engineering technology with nature in the selection of dozens of strains of beneficial microorganisms, with a special fermentation process is refined, rich in aquatic nutrients necessary for growth. Often with explosive gas law the FDA can effectively improve water quality and promote the decomposition of organic matter floating, degradation of ammonia, nitrite, hydrogen sulfide and other harmful toxic substances, increase dissolved oxygen, water beneficial to promote the growth of plankton. After probiotic liquid into the water, can inhibit pathogenic microorganisms and harmful substances, adjust farming environment, increase dissolved oxygen, promoting aquaculture system activation of normal flora and beneficial algae growth, maintain the ecological balance of culture water. [Product name] Yi Fuyuan EM main components of lactic acid bacteria, photosynthetic bacteria, yeasts, actinomycetes 【Properties】 This product is brown liquid sour taste Dosage Usage: diluted 1: 500-1000 times 5 to 10 hours after Quanchiposa. Dosage: 1 m depth, the first use of EM bacilli per acre 100L, 10 ~ 15 days after the use of a second EM bacilli 50L. According sewage volume (cubic meters) slightly polluted water: bacteria effectively put the number of 700 cubic meters / 10 kg liquid, moderately polluted water: bacteria effectively put the number of 700 cubic meters / 30 kg of EM liquid, highly contaminated waste water: put the effective number of 700 m3 bacteria / 100 kg of EM liquid [Note] 1, the product is viable preparations, bacterial activity is strong, should be sealed in a cool dark preservation. 2. Do not mix with antibiotics, insecticides, fungicides, disinfectants, acid and alkali products to use. 3, bottom sediment there is bacteria carrier, does not affect the quality, ease of use. 4, if the gas bottle, slowly and turned to avoid liquid spills. 5, after opening, please run out within a week. If the upper suspension using a white or a small amount of precipitation are normal phenomenon, please provide free after shaking: Shaoshui fermentation agent, swill fermentation agent, Okara leaven, leavening agents straw, manure fermentation agent, EM liquid fermentation bed making method, fermentation bed pig technology, fermentation bed chicken technology, roughage fermentation agent, manure fermentation agent, fermentation bed pig strains prices bacteria fermentation bed chicken prices, Shaoshui fermentation technology pigs, pigs swill fermentation technology, Okara pigs fermentation technology, pigs manure fermentation technology consulting QQ: 975488409 (office hours QQ are online) Office Phone: 0371-60392105 Sales Tel: 15038179606 (national sales calls, busy, SMS not faze) website: http: / /www.shengwujun.com Taobao shop 2: http: //emfajiao.taobao.com Taobao shop 1: http: //shengwujun.taobao.com pat shop: http: //shop.paipai.com/270656721 working hours: Monday to Saturday 8:30 am to 12:00 pm from 2:00 to 6:00 pm Address: Xinzheng City, Henan Province People's Road No. 218, Copyright: Yi Fuyuan Biotechnology Co., Ltd., Henan Province