An ecological ditch system for collecting and treating initial rainwater without affecting flood discharge
A technology of ecological ditches and initial rainwater, applied in waterway systems, sustainable biological treatment, biological water/sewage treatment, etc., can solve problems such as the lack of ecological ditch systems, improve purification effects, improve decontamination capabilities, and facilitate the growth of microorganisms Effect
Inactive Publication Date: 2016-08-17
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] At present, there is a lack of an ecological ditch system suitable for popularization to collect and treat initial rainwater without affecting flood discharge
Method used
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Embodiment Construction
[0032] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] An ecological ditch system for collecting and treating initial rainwater without affecting flood discharge, comprising a canal main body 1, which has a slope that enables rainwater to flow from the upstream 11 of the canal to the downstream 12 of the canal, and is characterized in that: the middle part of the canal main body 1 It consists of parallel treatment canal 2 and diversion canal 3, treatment canal 2 is surrounded by wetland dam 21, diversion canal 3 is separated by diversion dam 31, and the combination of wetland dam 21 and diversion dam 31 cross-cuts the canal main body 1; wetland dam 21 The height of the dam is higher than that of the diversion dam 31. A water inlet 21a is provided at the bottom of the upstream wetland dam 21. A water outlet 21b is provided at the same level as the downstream wetland dam 21 and the water inlet ...
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Abstract
The invention discloses an ecological ditch system for collecting initial rainwater without affecting flood draining. The middle part of a ditch main body consists of a treatment ditch and a flow dividing ditch which are arranged in parallel, wherein the treatment ditch is formed by encircling of a wetland dam; the flow dividing ditch is separated by a flow dividing dam; the wetland dam is combined with the flow dividing dam to transversely cut a ditch main body; the wetland dam rises above the flow dividing dam; a water inlet is formed in the bottom part of the wetland dam body positioned at the upstream; a water outlet is formed in a consistent horizontal height part of the wetland dam positioned at the downstream and the water inlet; a water retaining splitter plate is arranged behind the water inlet; a winding corridor type constructed wetland is arranged in the treatment ditch; when the flow rate of the rainwater which flows through the ditch main body is more than the maximum flow rate of the water inlet, a majority of rainwater crosses over the flow dividing dam and drains into the downstream of the ditch through the flow dividing ditch. The ecological ditch system has the advantages that the initial rainwater can be effectively purified and the flood can be drained in time when the high-flow rainwater flows through the ditch.
Description
technical field [0001] The invention relates to the technical field of rainwater treatment, in particular to an ecological ditch system for collecting and treating initial rainwater without affecting flood discharge. Background technique [0002] With the rapid development of urban and rural economies, the urban and rural air and the underlying surface are becoming more and more polluted, and as the area of impervious surfaces continues to increase, the runoff non-point source pollution caused by rainfall seriously threatens the surrounding water environment. The initial rainwater dissolves and engulfs the acidic gas and polluting aerosols in the air at the beginning of the rainfall. After landing, it further scours the asphalt linoleum roof, cement pavement, and sewage, sludge, and garbage accumulated in the rainwater drainage channels, making the initial rainwater contain Pollutants such as organic matter, pathogens, grease, suspended solids, and nitrogen and phosphorus ...
Claims
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IPC IPC(8): C02F3/32C02F3/34E02B5/00E02B5/08E03F5/00
CPCY02A10/00Y02W10/10
Inventor 王文林刘波万寅婧唐晓燕李文静李强盛明庄巍何斐梁斌李维新潘国权王昌群卢佳新陈永梅
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA