A kind of sewage recycling method

Abstract

The invention discloses a sewage recycling and reusing method. The method comprises the following steps: (a) digging a foundation pit; (b) constructing an aeration tank; (d) assembling a swing type filter device; (d) mounting the swing type filter device; (e) cleaning the swing type filter device; (f) building a microbiological treatment pond; (g) mounting a lifting pump; (h) collecting sewage; (i) carrying out primary filtration on the sewage; (j) carrying out aeration oxygenation; (k) carrying out microbiological treatment; and (l) carrying out water quality reuse. According to the method, the sewage is filtered by virtue of the swing type filter device, and a filter plate maintains an inclined angle of 15-30 degrees, so that the sewage is gradually filtered along the filter plate; meanwhile, the assembled swing type filter device swings repeatedly on a steel plate under the gravity of sewage so as to generate an impact effect to impurities on the filter plate, so that the blockage of filter holes by the impurities is prevented, the filter effect is improved, and the filter efficiency is improved; and furthermore, the occupied space is relatively small, the sewage filtration amount is increased, the energy consumption is low, and the process cost is low.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage recovery and reuse method. Background technique [0002] With the development of our country's economy and the continuous improvement of living standards, the environmental pollution caused by urban sewage is becoming more and more serious. At present, my country's urban sewage discharge continues to increase, and the treatment and recycling of urban sewage is particularly important. [0003] Urban sewage mainly includes domestic sewage and industrial sewage. Urban sewage recycling refers to the treatment of domestic and industrial sewage as a source of industrial, agricultural or municipal water. The amount of water containing pollutants in urban sewage accounts for only 0.1% of the total amount of sewage, and most of the rest is available clean water, and urban sewage is available nearby. The water volume is stable and easy to collect, and the se...

AI Technical Summary

Problems solved by technology

However, when treating domestic sewage, it takes up a lot of space and consumes a lot of energy, and impurities with larger particles will block the filter holes, resulting in inconvenient discharge of filtered sewage and low filtration efficiency.

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