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Method for de-eutrophicating sewage draining exits of residential communities

A technology of living quarters and eutrophication, applied in chemical instruments and methods, biological water/sewage treatment, sustainable biological treatment, etc., can solve the problems of no literature or patented technology, and achieve stable water quality and prevention and treatment of schistosomiasis Effect

Inactive Publication Date: 2015-06-03
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, except for the papers published by the applicant at home and abroad, there are no reports of literature or patented technology.

Method used

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  • Method for de-eutrophicating sewage draining exits of residential communities
  • Method for de-eutrophicating sewage draining exits of residential communities
  • Method for de-eutrophicating sewage draining exits of residential communities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1（2011

[0052] Example 1 (Hubei in 2011)

[0053] A method for de-eutrophication of sewage outlets in living quarters, the steps of which are:

[0054] 1. At the sewage outlet of the living quarters, use trees to block a fishing net from 30 cm from the water surface to the bottom. This fish net can not only prevent the aquatic plants that purify sewage from being blown into the domestic sewage ditch by the wind, but also prevent solid waste from being discharged into the South Lake. It can also regularly use a scoop to scoop up the sludge for aquatic organism cultivation or as fertilizer for paddy fields. Ecological breeding provides fresh bait, while human liquid excrement is purified by hydroponic aquatic plants at the sewage outlet of the living quarters. This is a way for the entire living quarter to collect solid human excrement, turn waste into treasure, and control the eutrophication of Nanhu Lake.

[0055] 2. Plant water hyacinths between the sewage outlets of the living qua...

Embodiment 2（2012

[0063] Example 2 (Hubei in 2012)

[0064] 1. Plant pre-cultivation: 1) plant germination; the same as land vegetables, sow bamboo leaf vegetables in spring, and sow pakchoi and watercress in autumn; 8-10 days of pre-cultivation in culture environment.

[0065] 2. Manufacturing of floating bed:

[0066] (1) Manufacturing of the floating bed: cut the bamboo poles according to the appropriate length, and each floating bed is composed of 3 vertical poles, 2 oblique poles, and 2 horizontal poles. Fix the bamboo poles as shown in the figure. In the process of fixing the two bamboo poles, twist the iron wires into a "+" knot to prevent the iron wires from loosening.

[0067] (2) Cutting of the mesh: After the frame is completed, start cutting the mesh. Lay the net on the frame, because the net is elastic, compare the size and then load and cut. According to the width of the floating bed, first cut the large net into small strips, and then cut into small nets according to the leng...

Embodiment 3（2013

[0074] Example 3 (Hubei in 2013)

[0075] 1. A method for de-eutrophication of sewage outlets in living quarters, comprising the following steps:

[0076] (1) Emergent plants are planted in shallow water areas; in 2013, shallow water above 0.2 meters was seen at the sewage outlet of the living quarters, so emergent plants were planted. First, it can increase the living environment of fish and shrimp in the water, so that fish and shrimp can Ingest, inhabit, and lay eggs in the place where emergent plants grow; second, reduce the workload of fishing aquatic plants from water every year; third, emergent plants have a higher ability to purify nitrogen and phosphorus in water. From the research results figure 1 , figure 2 Looking at the total nitrogen value of the water samples, the order of the total nitrogen value of the water samples is domestic sewage > water onion > water celery > Yongcai > wild rice > reed > Changpu; > Yong vegetables > Scallions.

[0077] (2) Use float...

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Abstract

The invention discloses a method for de-eutrophicating sewage draining exits of residential communities, which comprises the following steps: A, selecting a sewage draining exit of a residential community without heavy metal pollution, radioactive pollution and chemical pollution, and according to the population of the residential community, determining a planted area of aquatic plants; B, planting emergent aquatic plants in a shallow water area so that a water body is subjected to ecological restoration, and planting zizania aquatica, lotus roots, calamus, scirpus tabernaemontani and the like in March, wherein once the plants are planted, the plants can sprout every spring and can be harvested in mature seasons; C, planting aquatic vegetables in a water body with a depth of over 0.2 meters by using a floating bed; D, breeding aquatic animals at the sewage draining exit so as to prevent the occurrence of bilharziasis; and E, excavating sludge above the water surface in winter, and taking the sludge as a fertilizer for the seedling raising of aquatic vegetables and a culture medium for water planting. The method disclosed by the invention can be used for de-eutrophicating a sewage draining exit, which can not be manually controlled, of a residential community and carrying out ecological restoration.

Description

technical field [0001] The invention relates to the field of ecological restoration of water bodies, in particular to a method for removing eutrophication of sewage outlets in living quarters. Background technique [0002] At present, the methods of comprehensive prevention and control of eutrophication in natural water bodies in my country include activated sludge treatment, biological oxidation ponds, oxidation ditches, artificial wetlands, biological filters, reed ponds, aquatic plant ponds and other sewage treatment methods. Its treatment method all is to let dirt and sewage enter natural water body first, and then treatment. This patent is to control the entry of dirt and sewage into natural water bodies from the source, and collect feces (urine, silt, sewage) from households, whole buildings and living quarters respectively to facilitate resource utilization. Except for the papers published by the applicants at home and abroad, there are no reports of documents or pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 张世萍涂宇航陈玮珍王敏李大鹏
Owner HUAZHONG AGRI UNIV
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