Dongguan city sewage treatment equipment sewage treatment up to environmental technology

Why is domestic sewage in rural sub-urban sewage and sewage it? Because the composition of municipal sewage and domestic sewage in rural areas are different methods and operating costs of its sewage treatment is not the same, so there is a distinction between the above sewage treatment. Up Environmental Protection Technology Co., Ltd. After 15 years of experience in the environmental protection industry, the following urban and rural sewage treatment made a comparison, we can understand their difference. 1. Urban sewage mainly from families, schools, commercial and a series of urban public spaces, public facilities. The breadth of its origin and necessity makes the sewage facing regional tendencies. Urban sewage is a wide variety of pollutants. The current mainstream approach is biological: SBR process. SBR process is the sequencing batch activated sludge, water, reaction, precipitation, discharge and idle sequence is completed in the same pool, cycle operation. SBR representative type has UNI-TANK process, which is characterized by: (1) fixed weir instead of SBR decanter, pool depth increased; (2) the requirements of low self-control, easy management; (3) the wall shared investment cut back. Our Macau sewage treatment plant on the use of this technology. It is reported that in recent years the country has adopted "WT-FG" biological treatment of sewage. Its characteristics are: (1) abandoned the traditional mechanical aeration equipment, the use of energy-efficient circulation sprinkler and special additives to increase the dissolved oxygen in water; (2) using a special function of biological communities it with sewage , sludge biochemical reactions, achieve purification. (3) the construction and operating costs low. GB 18918-2002 "urban sewage treatment plant emission standards" sewerage system construction and design patterns, in conjunction with sewage water features and variation. In biological oxidation, biological contactor, CASS process based on the combination of topography, geology, vegetation, promote land percolation technology, artificial wetland technology, anaerobic + artificial wetland technology to practical technology. For irrigation, the river water, landscape wetlands wastewater reuse direction is determined sewage treatment combination mode. In short, the choice to follow the "way of the local conditions, technical and economic application, operation is simple and flexible" principle. Rural land sewage treatment, less investment, but also the use of rural land more advantages. And does not require specific personnel management biofilter is a relatively new water treatment technology, its biggest feature is a set of biological oxidation and retention of suspended solids in one, saving the subsequent sedimentation tank, anaerobic hydrolysis - high load biological filter First pond treatment system set sedimentation tank, aeration tank, sludge return facilities and amenities equal to one oxygen, greatly simplifying the process of sewage treatment. 2. rural sewage generated in the living and family farming and process sewage, including kitchen waste cooking, laundry, bathing and toilet sewage, domesticated with poultry waste, waste water and the like. Significantly lower than in urban rural sewage, wastewater pollutant concentrations are lower than the city. Inability to build sewage treatment plants, so we study the characteristics of a three formats septic tank treatment technology: the composition of three pond connected, by the middle into the soil pipe communication is the use of anaerobic fermentation, middle through feces and parasite eggs the proportion of the mixture is greater than the proportion of the general principles and tend to settle, feces in the pool after 30d fermentation decompose above, middle liquid manure in turn flows from one pool to three basins in order to achieve precipitation or kill the parasite eggs in feces and intestinal pathogenic The purpose of bacteria, the third liquid manure pools become high-quality fertilizer. Three or more bars of manure not only kill the parasite eggs and intestinal pathogenic effect, in the fermentation process of organic matter degradation may also play a role, as supplemented by micro-power to transform the underground Micro power to the sewage treatment system, degradation of organic matter better. Three grid or a septic tank is integrated economic and environmental benefits of the best ecological decentralized sewage treatment technology, it has a small footprint and does not require dedicated land (surface can be green or sclerosis), low investment, operating costs are Low maintenance and easy management, good sewage treatment effect, stable operation, and no secondary pollution, climate conditions have little effect and so on. Water standard GB 8978-1996 "Integrated Wastewater Discharge Standard" Summary: Sewage are seen from above, we consider the customer's construction, operation costs, and the characteristics of sewage to design the most appropriate approach. 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