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Device for wastewater treatment and sludge reduction and stabilization and wastewater treatment method thereof

A technology for wastewater treatment and sludge reduction, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to enhance sludge treatment capacity, overcome removal rate decline, and infrastructure costs and low running costs

Active Publication Date: 2014-01-15
HEILONGJIANG PROV WATER CONSERVANCY & HYDROPOWER SURVEY & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems that various existing domestic or livestock and poultry breeding wastewater small-scale treatment systems cannot have both low operating costs and efficient treatment of sewage and sludge, the present invention provides a device for wastewater treatment and sludge reduction and stabilization and its The waste water treatment method fully utilizes the synergistic mechanism of fillers and earthworms to achieve the goals of small footprint, low operating costs, efficient removal of organic matter and nutrients in sewage, and reduction of sludge hazards

Method used

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  • Device for wastewater treatment and sludge reduction and stabilization and wastewater treatment method thereof
  • Device for wastewater treatment and sludge reduction and stabilization and wastewater treatment method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Example 1: Treatment of domestic sewage in a certain community

[0034] Such as figure 1, the submerged biological packing bed 4 is erected above the earthworm ecological filter 15 through the support frame 21, the submerged biological packing bed 4 is cylindrical, with a height of 1m and a diameter of 1.1m, the submerged biological packing bed 4 and the earthworm ecological filter 15 The bottom is respectively provided with a conical upper sludge accumulation area 12 and a lower sludge accumulation area 19 .

[0035] The upper part of the submerged biological packing bed 4 is provided with a deflector 2, and the periphery is provided with a sedimentation area 7, and a return pump 10 is installed between the sedimentation area 7 and the deflector 2; the submerged biological packing bed 4 is embedded with a horizontal layered support 5 , the suspension filler 6 is suspended on the support 5, the upper end of the support 5 is provided with a rotating motor 3, the bottom ...

Embodiment 2

[0043] Embodiment 2: a farm wastewater is treated

[0044] Such as figure 1 , the submerged biological packing bed 4 is erected above the earthworm ecological filter 15 through the support frame 21, the submerged biological packing bed 4 is cylindrical, 0.9m high, and 1.0m in diameter, the submerged biological packing bed 4 and the earthworm ecological filter 15 Conical upper sludge accumulation area 12 and lower sludge accumulation area 19 are respectively arranged at the bottom of the bottom; deflector 2 is arranged on the upper part of submerged biological packing bed 4, and sedimentation area 7 is arranged on the periphery, between sedimentation area 7 and deflector 2 A return pump 10 is installed; the submerged biological packing bed 4 is embedded with a horizontal layered support 5, the suspended packing 6 is suspended on the support 5, the upper end of the support 5 is provided with a rotating motor 3, and the bottom of the support 5 is equipped with a blower 8 and aera...

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Abstract

The invention discloses a device for wastewater treatment and sludge reduction and stabilization and a wastewater treatment method thereof, and belongs to the field of equipment and methods for sewage treatment. The device comprises a submerged biological packed bed and an earthworm ecological filter, wherein the submerged biological packed bed is supported above the earthworm ecological filter through a support frame; an upper-layer sludge aggregation zone is arranged at the bottom of the submerged biological packed bed; a sludge valve No.1 is arranged at the bottom of the upper-layer sludge aggregation zone; the earthworm ecological filter is positioned under the upper-layer sludge aggregation zone; a lower-layer sludge aggregation zone is arranged at the bottom of the earthworm ecological filter; a sludge valve No.2 is arranged at the bottom of the lower-layer sludge aggregation zone. The device for wastewater treatment and sludge reduction and stabilization and the wastewater treatment method have the advantages that a two-stage structure of the submerged biological packed bed and the earthworm ecological filter is constructed to alternatively treat sewage, and under the premise of low operation cost, the efficient removal of organics and nutrient substances in wastewater is realized.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment and methods, and more specifically relates to a waste water treatment combined with a submerged biological packing bed and an earthworm ecological filter and a device for reducing and stabilizing sludge and a waste water treatment method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, the number of living quarters and animal husbandry breeding plants has increased sharply, resulting in a large amount of domestic and livestock breeding wastewater, which has brought certain negative impacts on the environment on which it depends, such as causing water bodies to Due to the sharp decline in ecosystem diversity and frequent eutrophication of rivers and lakes, it is urgent to build a wastewater treatment system suitable for the characteristics of separate living quarters or livestock and poultry breeding wastewater. How to efficiently r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/02
CPCY02W10/20
Inventor 汪龙眠张毅敏杨飞晁建颖高月香张永栋
Owner HEILONGJIANG PROV WATER CONSERVANCY & HYDROPOWER SURVEY & DESIGN INST
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