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Domestic living waste water treater

A treatment device and domestic wastewater technology, applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as difficult to achieve cheap and safe reuse , to achieve the effect of low cost

Inactive Publication Date: 2009-04-29
KURITA WATER INDUSTRIES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is difficult to reuse the treated water of domestic wastewater cheaply and safely

Method used

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  • Domestic living waste water treater

Examples

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Effect test

Embodiment

[0065] As a design example, the daily domestic wastewater generation is designed to be 750m 3 The domestic wastewater treatment device with the structure shown in Figure 1. Domestic wastewater includes kitchen wastewater, toilet wastewater, washing wastewater, bathroom wastewater and other miscellaneous wastewater. Kitchen wastewater, bathroom wastewater and other miscellaneous wastewater are treated in the first treatment system, and toilet wastewater and washing wastewater are treated in the second treatment system.

[0066] As a kitchen wastewater treatment, the concentration of oil extracted from n-hexane is 50-250mg / L, the concentration of BOD (organic matter represented by biochemical oxygen demand) is 300-550mg / L, the concentration of Chieda nitrogen is 40-60mg / L, and the surface activity Wastewater with a water quality of about 1-3mg / L concentration, the treatment capacity is 100m 3 / day. Toilet waste water has a BOD concentration of 300-620mg / L and a Chieda nitroge...

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Abstract

The invention provides a domestic wastewater treatment device for treating domestic wastewater and realizing the reuse of the domestic wastewater at low cost, which respectively and independently comprises a first treatment system and a second treatment system, wherein the first treatment system comprises a first biological treatment trough (15), a first coagulating sedimentation device (17), a first filtering device (19) and a first treatment water tank (20); and the second treatment system comprises a second biological treatment device (25), a second coagulating sedimentation device (27), a second filtering device (29) and a second treatment water tank (30). By treating the kitchen wastewater and the bathroom wastewater respectively in the first treatment system and the second treatment system, the device can reuse the water for different purposes.

Description

technical field [0001] The present invention relates to a domestic waste water treatment device discharged in daily life such as kitchen waste water, waste water from toilets, bathroom waste water, etc., and particularly relates to a domestic waste water treatment device including a biological treatment tank for treating domestic waste water with microorganisms. Background technique [0002] Generally, the domestic wastewater is sent to the sewage treatment plant through the sewer, and the sewage treatment is carried out in the sewage treatment plant to remove the filthy substances in the domestic wastewater. Domestic wastewater can be divided into kitchen wastewater, toilet wastewater, bathroom wastewater, face washing wastewater, washing wastewater, etc. according to its wastewater source. Most of these various kinds of domestic waste water are collected by the same sewer, and in the sewer, kitchen waste water, toilet waste water, etc. are in a mixed state. In recent year...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52
Inventor 浜端英男
Owner KURITA WATER INDUSTRIES LTD
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