CN110734160A

CN110734160A - domestic sewage treatment system and process thereof

Info

Publication number: CN110734160A
Application number: CN201910961616.8A
Authority: CN
Inventors: 方振明; 陈勇强; 郑向阳; 陈逸聪
Original assignee: Zhejiang Xianchuang Energy Polytron Technologies Inc
Current assignee: Zhejiang Xianchuang Energy Polytron Technologies Inc
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-01-31

Abstract

The invention provides domestic sewage treatment systems and processes, relate to the technical field of sewage treatment, the domestic sewage treatment system and process, including primary treatment unit, secondary treatment unit and resource unit, the said primary treatment unit is made up of primary filter module and primary squeezing module, the said secondary treatment unit is made up of secondary filter unit, secondary squeezing unit, ion treatment module and centrifugal dehydration module, the said resource unit is made up of oil-water separation module, precipitation adsorption module, super oxygen disinfection module, PH regulation module, high-temperature drying module and granulating module, carry on the rational processing through the solid phase in the domestic sewage, make the resource amount recovered from the domestic sewage more, thus has greatly improved the effect to the resource utilization, has saved a large amount of resources, the question of secondary pollution of effective reduction at the same time.

Description

domestic sewage treatment system and process thereof

Technical Field

The invention relates to the technical field of sewage treatment, in particular to domestic sewage treatment systems and a process thereof.

Background

Domestic sewage is wastewater discharged in daily life of residents, mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like, pollutants contained in the domestic sewage are mainly organic matters and a large number of pathogenic microorganisms, the organic matters existing in the domestic sewage are extremely unstable and easy to decay to generate stink, bacteria and pathogens are propagated in large quantities by taking the organic matters in the domestic sewage as nutrients, so that infectious diseases can spread and spread, and therefore, the domestic sewage needs to be treated before being discharged.

At present, sewage treatment is undergoing a deep transition from small scale, low level, variety list , serious incapability of meeting requirements to considerable scale and level, remarkable improvement of variety quality and preliminary satisfaction of national economic development requirements, the sewage treatment requirement is gradually self-sufficiency realized, although the existing various sewage treatment plants are already on a large scale, the existing domestic sewage treatment system and process have poor effect on resource utilization, the quantity of resources recovered from domestic sewage is small, so that a large quantity of resources are wasted, and the problem of secondary pollution is also aggravated.

Disclosure of Invention

() problems to be solved

Aiming at the defects of the prior art, the invention provides domestic sewage treatment systems and processes thereof, and solves the problems that the current domestic sewage treatment systems and processes have poor effect on resource utilization, the quantity of resources recovered from domestic sewage is small, a large quantity of resources are wasted, and secondary pollution is aggravated.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme that the domestic sewage treatment systems comprise a primary treatment unit, a secondary treatment unit and a resource unit.

Preferably, the primary treatment unit consists of a primary filtration module and a primary pressing module.

Preferably, the secondary treatment unit consists of a secondary filtering unit, a secondary pressing unit, an ion treatment module and a centrifugal dehydration module.

Preferably, the recycling unit consists of an oil-water separation module, a precipitation adsorption module, a superoxide disinfection module, a pH regulation module, a high-temperature drying module and a granulation module.

domestic sewage treatment process, comprising the following steps:

1) the domestic sewage is collected and discharged into a primary filtering module, a filtering device and a spiral pushing device are arranged in the primary filtering module, a solid phase generated in the primary filtering module is discharged into a primary squeezing module through the spiral pushing device for squeezing treatment, and then a liquid phase generated in the primary filtering module and a liquid phase generated in the primary squeezing module are sent into a secondary filtering module;

2) the secondary filtering module is also provided with a filtering device and a spiral pushing device, the diameter of the filtering device filtering hole in the secondary filtering module is smaller than that of the filtering device filtering hole in the primary filtering module, a solid phase generated in the secondary filtering module is discharged into the secondary squeezing module through the spiral pushing device for squeezing treatment, solid impurities generated in the primary squeezing module and the secondary squeezing module are sent into the centrifugal dehydrating module for dehydrating treatment, the dehydrated solid phase is sent into the high-temperature drying device, the dehydrated liquid phase is sent into the ion treatment module, then the liquid phases generated in the secondary filtering module, the secondary squeezing module and the centrifugal dehydrating module are sent into the ion treatment module, the ion treatment module is used for separating metal ions in the liquid phase, and the separated liquid phase is sent into the oil-water separation module;

3) the oil-water separation module recovers oil in a liquid phase, the recovered oil is sent to a waste oil processing plant, automobile fuel of the waste oil processing plant is sent to a precipitation adsorption module continuously, water is sent to a superoxide disinfection module after standing for periods in a precipitation pool, the superoxide disinfection module is used for sterilizing and deodorizing the water, then the water is sent to a pH adjusting module, the water is adjusted according to the measured pH value, the adjusted water is sent to a reservoir for storage, meanwhile, the high-temperature drying module performs drying treatment on a solid phase generated in the centrifugal dehydration module, the temperature is 70-90 ℃ during drying, the solid phase is naturally cooled after being dried for 30-60min and then sent to a granulation module for granulation, and the prepared particles can be used as feed and fertilizer.

(III) advantageous effects

The invention provides kinds of domestic sewage treatment systems and processes thereof, which have the following beneficial effects:

1. according to the domestic sewage treatment system and the process thereof, the solid phase in the domestic sewage is reasonably treated, so that the quantity of resources recovered from the domestic sewage is large, the effect of resource utilization is greatly improved, a large quantity of resources are saved, and meanwhile, the problem of secondary pollution is effectively reduced.

2. This domestic sewage treatment system and technology can detach the metal ion of sewage through the ion treatment module to the effectual harm that has reduced metal ion and caused to soil, simultaneously, can retrieve the grease in the sewage through the water oil separating module and be used for making automobile fuel, practiced thrift fuel resource greatly.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.

Example (b):

as shown in fig. 1, the domestic sewage treatment systems provided by the embodiments of the present invention include a primary treatment unit, a secondary treatment unit, and a recycling unit, and perform reasonable treatment on solid phase in domestic sewage, so that the amount of resources recovered from domestic sewage is large, thereby greatly improving the effect of recycling resources, saving a large amount of resources, and effectively reducing the problem of secondary pollution.

The primary processing unit comprises primary filter module and primary squeezing module, the secondary processing unit comprises secondary filter unit, secondary squeezing unit, ion treatment module and centrifugal dehydration module, the resource unit comprises oil-water separation module, precipitation adsorption module, super oxygen disinfection module, PH regulation module, high temperature drying module and granulation module, the metal ions of sewage can be removed through the ion treatment module, thereby the harm of metal ions to soil is effectively reduced, simultaneously, the grease in the sewage can be recovered through the oil-water separation module for manufacturing automobile fuel, and the fuel resource is greatly saved.

domestic sewage treatment process, comprising the following steps:

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

The domestic sewage treatment systems are characterized by comprising a primary treatment unit, a secondary treatment unit and a resource unit.
2. The kinds of domestic sewage treatment system of claim 1, wherein the primary treatment unit is composed of a primary filtration module and a primary pressing module.
3. The kinds of domestic sewage treatment system of claim 1, wherein the secondary treatment unit comprises a secondary filtration unit, a secondary pressing unit, an ion treatment module and a centrifugal dehydration module.
4. The kinds of domestic sewage treatment systems of claim 1, wherein the recycling unit comprises an oil-water separation module, a precipitation adsorption module, a superoxide disinfection module, a pH adjustment module, a high temperature drying module, and a granulation module.
5, kinds of domestic sewage treatment process, its characterized in that:

1) the method comprises the following steps: the domestic sewage is collected and discharged into a primary filtering module, a filtering device and a spiral pushing device are arranged in the primary filtering module, a solid phase generated in the primary filtering module is discharged into a primary squeezing module through the spiral pushing device for squeezing treatment, and then a liquid phase generated in the primary filtering module and a liquid phase generated in the primary squeezing module are sent into a secondary filtering module;

2) the secondary filtering module is also provided with a filtering device and a spiral pushing device, the diameter of the filtering device filtering hole in the secondary filtering module is smaller than that of the filtering device filtering hole in the primary filtering module, a solid phase generated in the secondary filtering module is discharged into the secondary squeezing module through the spiral pushing device for squeezing treatment, solid impurities generated in the primary squeezing module and the secondary squeezing module are sent into the centrifugal dehydrating module for dehydrating treatment, the dehydrated solid phase is sent into the high-temperature drying device, the dehydrated liquid phase is sent into the ion treatment module, then the liquid phases generated in the secondary filtering module, the secondary squeezing module and the centrifugal dehydrating module are sent into the ion treatment module, the ion treatment module is used for separating metal ions in the liquid phase, and the separated liquid phase is sent into the oil-water separation module;

3) the oil-water separation module recovers oil in a liquid phase, the recovered oil is sent to a waste oil processing plant, automobile fuel of the waste oil processing plant is sent to a precipitation adsorption module continuously, water is sent to a superoxide disinfection module after standing for periods in a precipitation pool, the superoxide disinfection module is used for sterilizing and deodorizing the water, then the water is sent to a pH adjusting module, the water is adjusted according to the measured pH value, the adjusted water is sent to a reservoir for storage, meanwhile, the high-temperature drying module performs drying treatment on a solid phase generated in the centrifugal dehydration module, the temperature is 70-90 ℃ during drying, the solid phase is naturally cooled after being dried for 30-60min and then sent to a granulation module for granulation, and the prepared particles can be used as feed and fertilizer.