Sewage treatment industry development on the one hand, China's sewage treatment capacity is currently still keep up with the rapid expansion of the size of the water pipe network, sludge treatment facilities is seriously lagging behind. On the other hand, China's sewage treatment rate compared with developed countries, there are significant gaps, and the processing load is low facilities. Therefore, China should improve policies and regulations of sewage treatment, the establishment of the regulatory system, create reasonable sewage treatment fee system, foster the development of domestic industry, environmental protection, sewage treatment industry to promote industrialization and marketization. Sewage treatment industry is a sunrise industry, development prospects. China will invest in the "Eleventh Five-Year" 300 billion yuan to promote urban sewage treatment and utilization, China sewage treatment industry thus usher in rapid development period. Farmers living in rural areas is less than the degree of centralized urban sewage treatment technology, sewage generated intensity lower than in urban sewage treatment equipment, Village financial resources thin, low income farmers sewage, should be encouraged to use economic, simple, effective, as far as possible with the local agricultural production combining diversification sewage treatment technology, treatment and disposal of sewage and resource utilization. 1, there is power buried integrated treatment technology Currently, buried power technology integrated treatment process can be divided by biological contact oxidation, SBR, A / O and A2 / O and so on. Common A / O processing technology principle is that the reduction in the anoxic tank effluent microbial nitrate nitrogen and nitrite nitrogen into gaseous nitrogen to escape, while the refractory organic molecules break down into small molecules easily degradable substances with nitrogen, hydrolysis and degradation of some organic matter effect; in the aerobic tank, most organic matter is treated microorganisms and into the secondary settling tank for mud separation, sterilized after discharge. A / O process in the degradation of organic matter, while the denitration so greatly reduced oxygen demand, biological treatment is the energy-saving technology. In order to maintain a high nitration rate, reaction residence time is longer than the conventional activated sludge process, the sludge settling characteristics, sludge growth rate is low, less residual sludge wastewater treatment process, settling characteristics. 2, sewage purification biogas digester technology small sewage purification application of anaerobic fermentation technology at room temperature, according to the "multi-stage gravity, gradual degradation 'in principle, the establishment of Ⅰ grade level facultative anaerobic digestion --Ⅱ new filter devices. It consists of anaerobic fermentation, digestion and filtration, sewage reflux and filler technology components. Most organic sewage to produce biogas through anaerobic fermentation, fermentation of sewage into the facultative digestion filtration tank, partially decomposed further degradation of organic matter. The precipitated portion of organic matter and the activated sludge is returned to the anaerobic fermentation anaerobic fermentation tanks enhance the effect, it will achieve the purpose of purification treatment. sewage purification biogas is a small decentralized wastewater treatment apparatus comprising less investment, good effect, run without energy support and so on. At present, the technology is widely used in Lianshui, East China Sea and other places, more significant effect. Ya Hsin Electronics (Dongguan) Co., Ltd. sewage treatment works (1800m3 / d) wastewater treatment works, rich students (certification), Jishou sewage provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students. Guangzhou Fu students Environmental Engineering Co., Ltd. (www.fushengyuan.com) is the leader in Guangzhou, environmental monitoring equipment, over the years, Companies implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the rich students leadership with the staff warmly welcome all inquiries negotiations to create a better future for rich students.