CN205917144U - High -efficient sludge treatment system - Google Patents

Abstract

The utility model discloses a high -efficient sludge treatment system, including high -pressure batch autoclave, with the metal separation system of high -pressure batch autoclave intercommunication, with the mud cleaning system of metal separation system intercommunication and with the sludge drying system of mud cleaning system intercommunication, include still that the metal that metal separation separation system carries out abluent metal cleaning system, mud cleaning system intercommunication has a high -pressure batch autoclave 1 system, microbiological treatment system and metal cleaning system intercommunication. The beneficial effects of the utility model are that: the utility model discloses an use high -pressure batch autoclave can make the water in the high -pressure batch autoclave reach super critical state to metal enrichment in making mud, thus be convenient for separate the metal in the mud, thus it causes environmental pollution in the environment to prevent that the heavy metal from flowing in, and wash the mud of sub -office metal through mud cleaning system and get rid of water -soluble material in the mud, the utility model discloses the harmful substance in the mud can be fully got rid of, sludge treatment's efficiency has been improved.

Description

A kind of highly effective sludge processing system

Technical field

This utility model is related to field of sludge treatment, specifically, is a kind of highly effective sludge processing system.

Background technology

Town sewage plant produce dewatered sludge as waste material, containing substantial amounts of Organic substance and abundant nitrogen and phosphorus Salt.At present, it is carried out with the discussion of recycling more, supercritical water gasification feeds because saving into without dried This, and supercritical water energy suppresses to react coal-tar middle oil, coke generation to a certain extent, thus realizing effectively producing hydrogen.With regard to dirt The research that mud supercritical water gasification is processed is concentrated mainly on the aspects such as hydrogen generation efficiency and hydrogen output, and sludge components are complicated, containing each Plant pollutant, the heavy metal that especially it contains needs also exist for the presence or absence of secondary pollution problem after supercritical water gasification process Concern, moisture content be 80% dewatered sludge supercritical water gasification before and after heavy metal property, specify that heavy metal accumulation after reaction To in solid phase residue, form integrally tends towards stability state, processes leather mud using supercritical water oxidation and reclaims wherein high-load Cr, find that the cr of most (reaching 98%) is enriched in solid phase and tends towards stability.There are some researches show, supercritical water gasification In mud after process, most heavy metals enter into solid phase and enrichment phenomenon occur, and form is tended towards stability state by labile state, Heavy metal environmental safety increases.

Due to the impact of sewage source and handling process, in mud, constituent and itself physicochemical property such as organic matter contain Amount, ph etc. differ greatly.The difference of sludge quality can affect supercritical water gasification heavy metals in process behavior to a certain extent. Process in sludge process in liquefaction and find, in solid phase residue, the transportable property of heavy metal is less than former mud it may be possible to because solid phase is residual Physicochemical property (the ph, organic matter) obvious difference compared with former mud of slag, and liquefaction process can promote labile state heavy metal to occur Thermochemical study tends towards stability state, adds alkali compoundss and probe into heavy metal during supercritical water gasification processes flying ash Stabilization effect, find that adding alkali compoundss can suppress heavy metal ion to be dissolved in water, and course of reaction the aluminum of synthesis Silicate heavy metal plays the role of retention, absorption.The impact that mud not of the same race is mixed into due to sewage source and rainwater, causes institute The heavy metal species, content and the occurrence patterns that contain are far from each other, and therefore, dewatered sludge supercritical water gasification not of the same race is residual after processing The heavy metal stayed in solid product still can not be come to a conclusion with the presence or absence of secondary pollution problem in later use, disposal.

Utility model content

The purpose of this utility model is to provide a kind of metal being conducive to isolating in mud, removes Organic substance in mud Highly effective sludge processing system.

This utility model is achieved through the following technical solutions: a kind of highly effective sludge processing system, including autoclave and The mud purging system that connects with metal separation system of metal separation system of autoclave connection and with mud purging system The sludge dry system of connection.

The metal purging system that the metal also including isolating metal separation system is carried out.

Described mud purging system is communicated with microbe treatment system.

Described microbe treatment system is connected with metal purging system.

Described autoclave is communicated with sodium bicarbonate add-on system.

Described microbe treatment system is system for anaerobic treatment.

Mud after also including for cleaning to mud purging system carries out detecting organic analyte detection of content of organics System, Organic substance detecting system is connected with sludge dry system.

Also include for the cement synthesis system of cement will be synthesized through the dried mud of sludge dry system.

This utility model compared with prior art, has advantages below and a beneficial effect:

(1) this utility model can make the water in autoclave reach supercriticality by using autoclave, In order to make the metal enrichment in mud, consequently facilitating the metal in separated sludge, prevent heavy metal from flowing in environment thus making Become environmental pollution, and by mud purging system, the mud of sub-department's metal is carried out removing the thing being dissolved in water in mud Matter, this utility model can fully remove the harmful substance in mud, improves the efficiency of Treatment of Sludge；

(2) this utility model passes through to arrange metal purging system and the metal that isolate can be carried out, to prevent point The metal clip separating out carries mud or Organic substance, it is to avoid pollute；

(3) this utility model cleaned mud and obtained in sewage by arranging microbe treatment system and can effectively remove The material containing n, p, s and Organic substance it is also possible to process to the water cleaning metal；

(4) this utility model pass through arrange sodium bicarbonate add-on system can add into autoclave sodium bicarbonate with Control the ph in autoclave to be in alkalescence, be conducive to heavy metal accumulation to arrive solid phase, thus improve the efficiency of Treatment of Sludge with And improve heavy metal recovery utilization rate, and it is prevented from autoclave by acid etching.

Brief description

Fig. 1 is a kind of structural representation of highly effective sludge processing system.

Specific embodiment

With reference to embodiment, this utility model is described in further detail, but embodiment of the present utility model is not It is limited to this.

Embodiment 1:

As shown in figure 1, in the present embodiment, a kind of highly effective sludge processing system, including autoclave and autoclave Mud purging system and the mud connecting with mud purging system that the metal separation system of connection is connected with metal separation system Drying system, described mud purging system is communicated with microbe treatment system, and in the present embodiment, described microbial treatments are Unite as system for anaerobic treatment, in the present embodiment, the metal that the metal that also includes isolating metal separation system is carried out is clear Wash system, metal purging system is connected with microbe treatment system.

Work process of the present utility model is as follows:

Mud is inserted in autoclave, make reaction under high pressure temperature in the kettle control 400 DEG C, pressure controls in 22mpa More than, make the water in autoclave reach supercriticality, in order to metal enrichment to solid phase, when reacted between reach predetermined Time after, autoclave is cooled to room temperature, you can separating treatment is carried out to the material in autoclave, by gold Belong to piece-rate system to isolate metal with mud, using mud purging system, the mud isolated is carried out, remove mud In be dissolved in the part of water and take away Organic substance to obtain sewage, and mud is separated with sewage, at sewage transport to microorganism Reason system, is processed to prevent dirt to the material containing n, p, s or Organic substance in sewage by using microbe treatment system Dye environment, the water obtaining after the metal isolated is cleaned also can be delivered to microbe treatment system and process, with dirt Water separates the mud obtaining and is dried process by using sludge dry system.

Embodiment 2:

On the basis of embodiment 1, in the present embodiment, described autoclave is communicated with sodium bicarbonate add-on system, Cross setting sodium bicarbonate add-on system and can add sodium bicarbonate into autoclave to control the ph in autoclave to be in Alkalescence, is conducive to heavy metal accumulation to arrive solid phase, thus improve the efficiency of Treatment of Sludge and improve heavy metal recovery utilization Rate, and it is prevented from autoclave by acid etching.

Embodiment 3:

On the basis of embodiment 1, in the present embodiment, the mud after also including for cleaning to mud purging system enters The Organic substance detecting system of row detection content of organics, Organic substance detecting system is connected with sludge dry system, by using having Machine quality testing examining system can detect in mud detached with sewage whether also have Organic substance, if proceeded clearly to mud Wash, do not contain Organic substance in mud.

Embodiment 4:

On the basis of embodiment 1, in the present embodiment, also include for will be through the dried mud of sludge dry system Dried mud is synthesized cement by using cement synthesis system, to improve material by the cement synthesis system of synthesis cement Utilization rate.

The above, be only preferred embodiment of the present utility model, and not this utility model is done with any pro forma limit System, every any simple modification above example made according to technical spirit of the present utility model, equivalent variations, each fall within Within protection domain of the present utility model.

Claims (8)

1. a kind of highly effective sludge processing system it is characterised in that: include the metal that connects with autoclave of autoclave and divide The mud purging system connecting with metal separation system from system and the sludge dry system connecting with mud purging system.

2. a kind of highly effective sludge processing system according to claim 1 it is characterised in that: also include metal separation system The metal purging system that the metal isolated is carried out.

3. a kind of highly effective sludge processing system according to claim 2 it is characterised in that: described mud purging system is even It is connected with microbe treatment system.

4. a kind of highly effective sludge processing system according to claim 3 it is characterised in that: described microbe treatment system Connect with metal purging system.

5. a kind of highly effective sludge processing system according to claim 1 it is characterised in that: described autoclave connection There is sodium bicarbonate add-on system.

6. a kind of highly effective sludge processing system according to claim 3 or 4 it is characterised in that: described microbial treatments System is system for anaerobic treatment.

7. a kind of highly effective sludge processing system according to claim 1 it is characterised in that: also include for cleaning to mud Mud after cleaning systems carries out detecting Organic substance detecting system, Organic substance detecting system and the drying sludge of content of organics System connectivity.

8. a kind of highly effective sludge processing system according to claim 1 it is characterised in that: also include for will be through mud The dried mud of drying system synthesizes the cement synthesis system of cement.