Small-scale hydraulic automatic biological filtration process

Abstract

The invention relates to a small-scale hydraulic automatic biological filtration process comprising a plurality of operation cycles, wherein each operation cycle comprises a filter process and a backwash process. The filter process is realized by the steps that: raw water or puddle water to be treated is injected into a raw water tank of a small-sized hydraulic automatic biological filtration device, then enters a siphon raising pipe, flows downwards into a quartz sand column, sequentially passes through a biological activated carbon column and a nano metal cluster column, enters a backwash water tank and finally enters a water outlet water tank to obtain purified water; the backwash process is realized by the steps that: water current from the backwash water tank sequentially enters the biological activated carbon column and the quartz sand column for back washing when the water level of the raw water or puddle water to be treated in the siphon raising pipe rises to a pipe mouth of asiphon auxiliary pipe; and the backwash process is ended and the filter process is recovered when water level of the backwash water tank decreased to a siphon damage head. The small-scale hydraulic automatic biological filtration process is simple for operation, has remarkable effect for removing pollutants and is applicable to water quality treatment of water collecting puddle water in villages and towns in northwest of China.

Description

Technical field [0001] The invention relates to the technical field of rural drinking water treatment, in particular to a small-scale hydraulic automatic biological filtration process. Background technique [0002] Due to the increasing shortage of fresh water resources and the increase in the cost of water supply in scattered rural areas, the collection and utilization of rainwater resources have been paid more and more attention. Effective collection and use of rainwater is an effective way to solve the problem of water shortage in water-scarce areas, especially in the northwestern drought. In rural areas in water-scarce areas, the water supply method of storing rainy season rainfall in water cellars has become the last water guarantee for drinking water sources. However, the rainwater stored in the cellar is polluted by solid waste debris (garbage, animal manure, etc.), air sediments, fertilizers, pesticides, vehicle emissions, and other human activities. In addition, long-te...

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Problems solved by technology

In addition, most of the existing micro-polluted water treatment equipment requires professionals to operate and debug. The cultural level of personnel in scattered residential areas in Northwest rural areas is generally low, and they do not yet have the level to operate such equipment. However, equipment with a high degree of automation and easy operation Most of the electrical automatic control systems are expensive, and most of the rural population in the northwest do not have the conditions to purchase such equipment