Secondary trickling filter system for treating domestic sewage of villages and small towns and trickling filter process thereof

A domestic sewage and two-stage trickle filtration technology, which is applied in the direction of aerobic process treatment, anaerobic digestion treatment, sustainable biological treatment, etc., can solve the problems of device failure, poor treatment effect, high investment and operation costs, and promote construction , easy to manage, and the effluent water quality is stable and up to standard

Inactive Publication Date: 2010-07-14
POWERCHINA HUADONG ENG COPORATION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing domestic sewage treatment process in villages and towns pursues low energy consumption one-sidedly, resulting in poor treatment effect or device failure. At the same time, the integrated device suitable for small water treatment in villages and towns has problems of high investment and operation costs.

Method used

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  • Secondary trickling filter system for treating domestic sewage of villages and small towns and trickling filter process thereof
  • Secondary trickling filter system for treating domestic sewage of villages and small towns and trickling filter process thereof

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Embodiment Construction

[0016] Such as figure 1 As shown, the present embodiment includes an anaerobic pond treatment subsystem, a trickling filtration treatment subsystem and a land infiltration subsystem 5 connected in sequence through pipelines, and there is a Outlet water lift well 4, wherein the trickling filtration treatment subsystem is composed of two stages of trickling filtration treatment units 3 connected in series. Since the pipe network system in this example does not have a septic tank before entering the terminal treatment facility, the anaerobic tank treatment subsystem is composed of the first-level anaerobic tank 1 and the second-level anaerobic tank 2 in series. , the sewage stays in the two anaerobic tanks for 12 hours respectively. The soil infiltration subsystem 5 is the infiltration pipeline buried horizontally in the soil layer. Below the infiltration pipeline is an air-entrained soil layer with a thickness of at least 1m. Generally, the top of the infiltration pipeline shou...

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Abstract

The invention relates to a secondary trickling filter system for treating domestic sewage of villages and small towns and a trickling filter process thereof, aiming to provide a secondary trickling filter system for treating domestic sewage of villages and small towns and a trickling filter process thereof, with low investment, low operating expense and energy consumption and stable and standard outlet water quality. The secondary trickling filter system for treating domestic sewage of villages and small towns is characterized by comprising an anaerobic pond treatment subsystem, a trickling filter treatment subsystem and a land percolation subsystem which are sequentially connected through a pipeline, wherein an outlet water lifting well is arranged between the trickling filter treatment subsystem and the land percolation subsystem, and the trickling filter treatment subsystem is formed by connecting two stages of trickling filter treatment units in series. The treatment process comprises the following steps of: (1) carrying anaerobic treatment; (2) carrying trickling filter treatment; and (3) refluxing a part of sewage, ensuring that a part of sewage enters the land percolation subsystem for deep treatment and then draining. The invention is mainly used for treating the domestic sewage of villages and small towns.

Description

technical field [0001] The invention relates to a secondary trickle filtration system and a trickle filtration process for treating domestic sewage in villages and towns. It is mainly suitable for the treatment of domestic sewage in villages and towns. Background technique [0002] The existing domestic sewage treatment process in villages and towns pursues low energy consumption one-sidedly, resulting in poor treatment effect or device failure. At the same time, the integrated device suitable for small water treatment in villages and towns has problems of high investment and operation costs. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a two-stage trickle filtration system and its trickle filtration process for treating domestic sewage in villages and towns with low investment, low operating cost and energy consumption, and stable and up-to-standard effluent quality. [0004] The technical solution adopted i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/28C02F3/04
CPCY02W10/10
Inventor 魏俊王银龙陶如钧许高金蒋波
Owner POWERCHINA HUADONG ENG COPORATION LTD
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