Sewage irrigation is an effective measure for the comprehensive utilization of water and fertilizer resources, it plays a good role in promoting agricultural production and reducing agricultural costs. With the rapid development of industrial construction and urban development, exacerbated by the shortage of water resources, sewage discharge exceeds the emission standards, pollution accidents occur from time to time, the pollution of agricultural products occur from time to time, directly affecting human health. Therefore, it is urgent to solve the problem of the harm of sewage irrigation on agricultural products.
Benefits of sewage treatment equipment:
1, set treatment BOD5, COD, NH3-N, fecal coliform bacteria, PH in one.
2, the whole set of equipment can be buried in the ground, does not occupy surface area.
3, low voice, less odor, small impact on the surrounding environment.
4, the degree of purification is high, the whole system produces less sludge.
5, high degree of automation, easy to manage, do not need special management.
6, stable technology, easy maintenance.
Today's sewage treatment equipment is widely used, suitable for residential areas, hospitals, nursing homes, office buildings, shopping malls, hotels, restaurants, institutions, schools, troops, aquatic processing plants, livestock processing plants, dairy processing plants, and other domestic sewage and similar industrial organic wastewater, such as textiles, beer, papermaking, tanning, food, chemical and other industries of organic sewage treatment.
Integrated wastewater treatment equipment generally refers to automatic backwashing sewage filter. Integrated sewage treatment equipment is a kind of filter that can use low quality water for filtration, and can also be used for other processes that require filtration, it is equipped with a manual butterfly valve in the front section of the filter cartridge, and by adjusting the orientation of the valve plate through the handle, it can change the direction of the flow of water to the filter with the function of backwashing to exclude impurities, and it is small in size, with a large filtration capacity, and easy to operate and manage. Generally installed in front of the water supply, heat exchanger or the front of the actuator, can not be regularly flushed to exclude impurities, sewage does not need to shut down and do not put the pipeline system when the water discharge operation.
Farm irrigation water quality standards, the rational use of wastewater irrigation has played a positive role. Through the development and implementation of standards to promote the comprehensive prevention and control of pollution, resources and energy utilization; agricultural irrigation standards also promote the implementation of emission standards; it provides a basis for environmental quality assessment and scientific management; the rise of this research work to promote the in-depth development of environmental scientific research. At the same time, through the census and evaluation of the environmental quality of the country's main sewage irrigation areas in recent years, it was found that there are some problems in the trial implementation of agricultural irrigation water quality standards need to be revised. Revision of agricultural irrigation water quality standards is based on the principle that: the trial standard, the revised standard should reflect the technically advanced, economically rational; for different situations, pay attention to differentiation, leniency and severity, so that the environmental benefits and economic benefits of the unity; combined with the national situation, taking into account the needs and possibilities, and to consider the rationality and feasibility of it.