Ecological restoration transformation method for urban inland river sewage and sludge

A technology for inland rivers and sewage, applied in the direction of combustion methods, sludge treatment, separation methods, etc., can solve the problems of original ecological changes, not very desirable, and long renovation time, to achieve ecological utilization, save water flow, and reduce engineering quantities Effect

Inactive Publication Date: 2017-05-31
刘先春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of short-term effects, this solution can alleviate the problem of river water pollution, but from the perspective of long-term effects, it is easy to pollute the water in the outer river due to the connection with the outer river. At the same time, the pollution problem has not been effectively solved, but only transferred, thus It will lead to a complete change of the original ecology of the inland river and its surroundings, and the original sewage will continue to pollute the big river. In addition, the transformation will take a long time and cost a lot, so it is not very desirable

Method used

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  • Ecological restoration transformation method for urban inland river sewage and sludge
  • Ecological restoration transformation method for urban inland river sewage and sludge
  • Ecological restoration transformation method for urban inland river sewage and sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 1. If Figure 5 As shown in Fig. 1, both ends of the polluted inland river are first disconnected and divided into three treatment units, and two adjacent treatment units are also disconnected so that they are not connected to each other, and then the sewage is pumped from the upstream. There are two ways to pump sewage:

[0030]One is when there is not much water in the inland river, such as at the end of autumn and early winter, when the water in the inland river is less than half of the capacity of the inland river, the sewage from the first treatment unit 1 can be drained to the second treatment unit 2, and then removed The sludge and earth rocks in the first treatment unit 1 until the pebble layer is exposed, these removed sludge and earth stones are piled up around the first treatment unit 1 and the second treatment unit 2 to form the dam of the first sewage treatment ditch, And dig the bottom of the first sewage treatment ditch to the pebble layer; then pump par...

Embodiment 2

[0038] Except for the following content, all the other are the same as embodiment one:

[0039] Plant lotus root directly in the "U"-shaped backwater ditch. The planting density of lotus root is 100-200kg / mu, and there is no need for cages. Breed pomfret directly in the "U"-shaped backwater ditch. The breeding density of pomfret is 30-100 fish / mu, the stocking size of pomfret is 1-2 taels; freshwater lobster and catfish are no longer stocked, and there is no need to plant iron crowns in the form of sunken logs; Arranging LED lights on the ground, on the one hand, increases the yield of the planted cash crops, and on the other hand, beautifies the construction of the town. Plant cattails directly on both sides of the embankment of the "U"-shaped backwater ditch. The inland river after transformation, such as Figure 8 shown.

[0040] For the sewage treatment ditch in the present invention, in each fish harvesting season, starting from the upstream of the "U"-shaped backwater...

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Abstract

The invention discloses an ecological restoration transformation method for urban inland river sewage and sludge. The method is started from three aspects as follows: (1) sewage in a to-be-treated polluted inland river is drained and the sludge at the bottom of the river is eliminated until a pebble bed is exposed; (2) an annular sewage treatment ditch is dug in the periphery of the inland river, the digging depth is to expose the pebble bed and the municipal sewage enters the sewage treatment ditch; and (3) eliminated sludge is stacked at two sides of the sewage treatment ditch to form a dam of the sewage treatment ditch. The transformation method belongs to pure natural and pollution-free original ecological restoration method and the influences of pollution and the like on surroundings are avoided. Compared with an existing transformation method, time and labor are saved and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for ecological restoration and transformation of urban inland river sewage sludge. Background technique [0002] The tributary of the original outer river formed an inner river due to the flood control embankment enclosing the city. With the development of urban industrialization, industrial sewage and domestic wastewater have increased sharply, causing a large amount of pollutants such as nitrogen, phosphorus, and COD to be discharged into the surrounding area. Smelly water seriously affects the quality of life of the surrounding residents. In view of this situation, the governments of various countries are actively working hard to control the urban inland rivers, purify and beautify the water bodies under the premise of ensuring the flood discharge function of the water bodies, and make them a beautiful scenery in the town. At present, the commonly adopted t...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F3/32F23G7/06B01D47/06B01D53/14E02B3/02
CPCB01D47/06B01D53/14B01D2258/0283C02F3/327C02F11/00C02F2103/001C02F2103/007E02B3/023F23G7/06Y02W10/10
Inventor 刘先春
Owner 刘先春
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