Biological filter and design method thereof

A design method and technology of filtering ditch, which are applied in waterway systems, drainage structures, water supply devices, etc., to achieve the effect of simple process, restoration of urban ecological environment, and advanced technology
CN105064489AInactive Publication Date: 2015-11-18XIAN MUNICIPAL ENG DESIGN & RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN MUNICIPAL ENG DESIGN & RES INST
Publication Date
2015-11-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a biological filter and a design method thereof. Through a planting soil layer, a filling layer and a gravel drainage layer, sewage can be subjected to multistage filtering and then is introduced into an overflow well through a perforated drain pipe. By employing the biological filter, runoff pollution of urban roads can be reduced, reclamation of rainwater can be achieved, the urban ecological environment can be restored, and rainwater utilization engineering of construction zones and urban roads can be safe, reliable, economical and applicable, and can be advanced in technology.
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Description

【Technical field】

[0001] The invention belongs to the field of municipal construction, and in particular relates to an ecological filter ditch and a design method thereof. 【Background technique】

[0002] With the improvement of urbanization level and the continuous expansion of land hardening area, the problem of urban non-point source pollution is becoming more and more serious. A series of pollutants are washed and collected during the process of rainfall and runoff, and finally discharged into the water body to cause non-point source pollution. It is an important part of urban water environmental pollution. The US Environmental Protection Agency (USEPA) has classified this Pollution ranks as the third leading source of pollution in rivers and lakes across the United States. It has the characteristics of accumulation in sunny days, discharge in rainy days, strong randomness, strong suddenness, and large pollution runoff.

[0003] The main pollution sources of storm runof...

Claims

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