Rainwater Utilization System Based on Limestone Karst Area

Abstract

The invention provides a rain sewage utilization system based on a lime karst area. The system comprises a cylindrical sewage well and a clean water pond around the outer side of the sewage well. The bottom of the sewage well and the bottom of the clean water pond are communicated to form an annular filtering channel. A well wall pipe is arranged in the sewage well. A first water-permeable pipe is arranged on the communication position of the bottom of the sewage well and the inner periphery of the filtering channel. A second water-permeable pipe is arranged on the communication position of the bottom of the inner pond wall of the clean water pond and the outer periphery of the filtering channel. The filtering channel is filled with pebbles and sandstone. A filter is arranged in the filtering channel and arranged between the first water-permeable pipe and the second water-permeable pipe in a sleeving mode. Sewage can directly seep into an underground karst cave after being filtered, when water in the karst cave is saturated, and the filtered sewage can circumferentially diffuse and enter the clean water pond through the second water-permeable pipe to be stored. A water source in the clean water pond can be used by an air conditioner circulating system, and accordingly reuse of rain sewage is achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a rainwater utilization system based on a limestone karst area. Background technique [0002] Domestic waste incineration power generation treatment method is one of the main ways of urban domestic waste treatment. The water content of municipal solid waste in my country is high. After being piled up in a large amount in the storage pit before incineration, it will ferment to produce leachate. The water quality of the leachate is complex, the concentration of organic matter is high, the content of ammonia nitrogen is high, the color is deep, and the odor is strong. The treatment process High difficulty. [0003] In the prior art, there are two main types of leachate treatment methods: one is to directly discharge the leachate into the urban sewage treatment plant for combined treatment after a certain pretreatment; the other is to treat the leachate Treated separately. ...

AI Technical Summary

Problems solved by technology

Combined treatment requires the leachate to be transported to the sewage treatment plant through pipelines. The transportation cost is high, economically unreasonable, and it will have an impact on the treatment system of the sewage treatment plant; the leachate is treated separately, and the existing leachate treatment Process method, there are many forms, but it is not very ideal in terms of efficiency, effect and investment cost

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