CN103508576A

CN103508576A - Method used for processing city domestic sewage

Info

Publication number: CN103508576A
Application number: CN201310136734.8A
Authority: CN
Inventors: 周梅英
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2014-01-15

Abstract

The invention discloses a method used for processing city domestic sewage. According to the method, when a new city zone is built, drainage pipelines for city domestic sewage and drainage pipelines for water of productive use are arranged separately; agriculture development is performed around the city; city domestic sewage is processed, and is introduced into farmland or river network instead of being discharged into rivers, and is taken as fertilizers for planting. Domestic sewage in urban areas is collected at domestic sewage treatment stations via independent pipelines; a plurality of sedimentation basins (septic tanks) and clarifier tanks are built in suburb areas; city domestic sewage is delivered from the domestic sewage treatment stations to the sedimentation basins and clarifier tanks; water after multiple-stage sedimentation treatment and purification is subjected to further treatment (such as being delivered into large-scaled storage water distribution networks); night soil obtained after sedimentation treatment can be used as fertilizers for planting. The method is capable of resolving a plurality of problems, such as environmental protection, waterlogging, fertilizer and soil improvement, at the same time.

Description

The treating method of city domestic sewage

Technical field

The present invention relates to environment protection, city planning, sewage treatment area.

Background technology

The main body of city domestic sewage is human body blowdown (stool, urine of human body).Present conventional processing way be this part sewage is blended directly in production waste together with, by unified sewer line, be discharged in rivers and go.The neither environmental protection of this way, and spread unchecked when causing water level to go up when rivers, sewage discharge is not smooth, also can cause city waterlogging.

Summary of the invention

The present invention proposes: life is human body blowdown (stool, urine of human body) by the main body of sewage.Compare with production waste, sanitary sewage be one relatively clean, tractable water source.Therefore,, when building new town, the drainage pipeline of the drainage pipeline of city domestic water and water of productive use should be arranged respectively.Meanwhile, at surrounding city, carry out agricultural development, city domestic sewage is introduced to farmland or the network of rivers through processing, rather than be directly discharged in rivers and go, as plantation, be used as the fertilizer of agriculture thing.

The technical superiority of this method has:

By urban life with being transported to farmland after sewage disposal, greatly reduced the pressure of urban sewage, alleviated to a certain extent the danger of city waterlogging.

2. a lot of cities are because of mismanagement, and the dirt sewage of toilet directly flows out ground, very unhygienic.Utilize above way, for these sewage concrete managements, can play certain active effect to urban environmental protection.

3. human body blowdown as fertilizer sources, nuisanceless, and the farm crop of planting out are green foods.

4. adopt human body blowdown as fertilizer sources, saved the demand of a large amount of agriculture chemicals, the change that has brought essence for people's health.

5. owing to having reduced the demand of agriculture chemical, reduced the pollution of sewage and waste gas in agriculture chemical production process.

6. utilize human body blowdown to make fertilizer, can improve soil simultaneously, loose soil property, is to omit alkaline soil by acid soil improvement.Such soil is conducive to proportion of crop planting most.

7. for country has saved a large amount of funds.

8. develop Liao Xin agricultural land, for Lost-land Peasants ', university student and the unemployed provide more job opportunity.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of city domestic sewage treating method.In embodiment, can elaborate.

Embodiment

As shown in Figure 1 the sanitary sewage in ，Jiang city by pipeline centralized collection independently at sanitary sewage disposal station.Set up on the outskirts of a town a plurality of precipitations (excrement pond) pond and treating pond.Utilize pipeline, by city domestic sewage from sanitary sewage disposal station is transported to these settling tanks and treating pond.Water through multi stage precipitation and after purifying, otherwise processed (as, introduce in large-scale water storage allotting network).The ight soil of precipitation gained etc., can be used as fertilizer for agricultural planting.

Claims

1. the treating method of a city domestic sewage, when building new town, the drainage pipeline of the drainage pipeline of city domestic water and water of productive use is arranged respectively, simultaneously, at surrounding city, carry out agricultural development, city domestic sewage is introduced to farmland or the network of rivers through processing, rather than be directly discharged in rivers and go, the fertilizer of using as Planting Crops, by the sanitary sewage in city by pipeline centralized collection independently at sanitary sewage disposal station, set up on the outskirts of a town a plurality of precipitations (excrement pond) pond and treating pond, utilize pipeline, by city domestic sewage from sanitary sewage disposal station is transported to these settling tanks and treating pond, water through multi stage precipitation and after purifying, otherwise processed (as, introduce in large-scale water storage allotting network), the ight soil of precipitation gained etc., can be used as fertilizer for agricultural planting.