Wastewater electromagnetic flowmeter in rural domestic wastewater applications

Case introduction

Sewage electromagnetic flowmeter - characteristics of rural domestic sewage: kitchen cooking water, bathing, washing water and toilet flushing water, these water dispersed, rural areas do not have any collection of facilities, with the rainfall scouring, with the surface of the ground into the rivers, lakes and marshes, ditches, ponds, reservoirs and other bodies of surface water, soil water and groundwater, which has a large content of organic matter is the main feature. Sewage electromagnetic flowmeter comparison of various rural sewage treatment methods and advantages and disadvantages 1 effect algae pond effect algae pond than the traditional stabilisation pond residence time is short, covers an area of small; easy to build, easy maintenance, low capital investment, low operating costs; ammonia, nitrogen and pathogens removal efficiency, but it is susceptible to environmental factors such as temperature and 2 biofilter biofilter impact load resistance, low-temperature resistance, no sludge expansion, can be Avoid microbial loss, maintain microbial quantity, simple daily operation and management, stable treatment effect. The process is simple, the infrastructure cost is low, and the influence of temperature is small. As the biofilter is a semi-closed or fully closed structure, its biochemical reaction is less affected by the external temperature, so it is suitable for the cold regions in the north.3 Artificial WetlandArtificial wetland system has significant advantages in treating sewage, which is suitable for different treatment scales, with low capital cost, and the treatment structures are made of various ecosystems or simply constructed, with no complicated mechanical equipment, easy to operate, maintain and manage. Surface flow artificial wetland maturation period is short, only 3 months to 4 months. Surface flow artificial wetland is usually transformed into a swamp, abandoned river and other depressions, so its construction cost is low, according to the local topography of the difference between the use of combined sewage treatment system, the pool body using a brick-concrete structure, which can reduce the footprint, cost savings.4 Non-power buried domestic sewage treatment plant Non-power buried domestic sewage treatment plant without daily operating costs, suitable for decentralised treatment of rural domestic sewage. The reaction system is sensitive to the impact of large amounts of water. The reaction system is sensitive to the impact of large amounts of water, rainstorms have a big impact on it, and northern construction projects need to consider anti-freezing, increasing investment costs.5 Purification of biogas digester domestic sewage purification biogas digester is developed on the basis of septic tanks and biogas digesters, overcoming the septic tanks with poor treatment results, deposited sludge, biogas digesters with low biogas recovery rate of the disadvantages of the.6 Soil percolation system wastewater treatment process technology to take advantage of the natural purification capacity of soil, with low capital investment and low cost. It has the advantages of low capital investment, low operation cost, easy operation and management, etc. Moreover, it can also make use of the water and fertiliser resources in the sewage, combine the sewage treatment with greening, and beautify and improve the regional ecological environment.