CN105536685A - Method for preparing sewage treatment adsorbent by comprehensively utilizing sludge - Google Patents

Method for preparing sewage treatment adsorbent by comprehensively utilizing sludge Download PDF

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Publication number
CN105536685A
CN105536685A CN201510978536.5A CN201510978536A CN105536685A CN 105536685 A CN105536685 A CN 105536685A CN 201510978536 A CN201510978536 A CN 201510978536A CN 105536685 A CN105536685 A CN 105536685A
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CN
China
Prior art keywords
sludge
mud
sewage treatment
adsorbent
sewage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510978536.5A
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Chinese (zh)
Inventor
钟春红
郑恒利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU LYUYUAN XINCHUANG ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
CHENGDU LYUYUAN XINCHUANG ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
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Application filed by CHENGDU LYUYUAN XINCHUANG ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd filed Critical CHENGDU LYUYUAN XINCHUANG ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201510978536.5A priority Critical patent/CN105536685A/en
Publication of CN105536685A publication Critical patent/CN105536685A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0251—Compounds of Si, Ge, Sn, Pb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/42—Materials comprising a mixture of inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/04—Surfactants, used as part of a formulation or alone

Abstract

The invention discloses a method for preparing a sewage treatment adsorbent by comprehensively utilizing sludge. According to the method, sludge produced in a sewage treatment plant is taken as a main raw material, a certain quantity of auxiliary materials and additives are added, and the mixture is molded, decarburized and roasted to obtain a light sewage treatment adsorbent with certain strength, so that a large amount of dehydrated sludge can be consumed. The method has the advantages that a complete system process for preparing the sewage treatment adsorbent from the sludge is adopted, so that the sludge is recycled, and the proportion of clay used in a sludge sewage treatment adsorbent system is reduced; in the conventional process, a large amount of sewage treatment adsorbent is used, the proportion of the clay used in the sludge sewage treatment adsorbent system is reduced, and sludge, active carbon, montmorillonite, a curing agent, the clay and the additives are mixed according to a certain proportion to prepare the sludge sewage treatment adsorbent; the sludge sewage treatment adsorbent has superior performance, is wide in application, and is taken as a filler for removing organic pollutants in water.

Description

A kind of method fully utilizing mud and prepare sewage disposal adsorbent
Technical field
The present invention relates to a kind of method fully utilizing mud and prepare sewage disposal adsorbent.
Background technology
Sewage disposal adsorbent is made with sewage plant sludge, turn waste into wealth, to greatly alleviate increasingly serious sludge handling problem, in processing procedure, a large amount of pathogen is killed by high temperature, and heavy metal is cemented in sewage disposal adsorbent, eliminate in agricultural sludge process, heavy metal enters food chain from agricultural product, finally enter human body, and the problem of enrichment in human body, avoid the generation of secondary pollution, really embody innoxious, the minimizing of Solid Waste Treatment, resource principle, obvious environment benefit.At present, the major way of domestic and international sludge treatment has the methods such as landfill, burning, throwing sea and Land_use change, although these methods can hold a large amount of mud, is the effective way of sludge treatment, also there are problems.Sewage disposal adsorbent is as one lightweight aggregate for building, with its light body, insulation, the characteristics such as environmental protection receive the very big attention of people, sewage disposal adsorbent is mainly with clay, mud is main, and the source overwhelming majority of raw clay is taken from arable land, do not meet the strategy of sustainable development, therefore with the mud of sewage treatment plant for primary raw material, a certain amount of auxiliary material in addition, additive, the lightweight sewage disposal adsorbent with some strength is made with burning is swollen through decarburization, consumption dewatered sludge that can be a large amount of, not only processing cost is significantly less than burning method, and mud secondary pollution can be avoided, especially the innoxious of fixed-end forces is met, minimizing and resource principle will have vast potential for future development.
Summary of the invention
The object of the present invention is to provide a kind of method fully utilizing mud and prepare sewage disposal adsorbent, mud and sewage process adsorbent is formed by shaping and roasting by sludge of sewage treatment plant, advantage is that having perfect processing prepares mud and sewage process sorbent system technique, mud obtains recycling, in mud and sewage process sorbent system, clay usage ratio reduces, by mud, active carbon, montmorillonite, curing agent, clay, additive mixes manufacture mud and sewage process adsorbent by a certain percentage, the superior performance of mud and sewage process adsorbent has wide range of applications, as removal organic pollutants filler.
Object of the present invention is achieved through the following technical solutions:
Fully utilize the method that mud prepares sewage disposal adsorbent, specifically comprise the steps:
(1) sludge of sewage treatment plant is collected in storage basin, and mud, more than 99%, is squeezed in sludge dewatering equipment and sludge drying machine by sludge pump, moisture percentage in sewage sludge is reduced to 60 ~ 65% by the moisture content of mud;
(2) then dewatered sludge is dropped in batching mixing arrangement, material proportion in batching mixing arrangement: mud ratio is 30 ~ 40%, montmorillonite ratio is 35 ~ 45%, clay ratios is 5 ~ 10%, active carbon 3 ~ 8%, curing agent 1 ~ 2%, clay 1 ~ 2%, additive 1 ~ 2%, after being stirred by batching mixing arrangement, material is shaping at drum-type forming machine;
(3) shaping sifted separates the molding materials of size at 3 ~ 8mm, molding materials carries out roasting in calcining kiln, in molding materials, mud has certain calorific value, and add coal dust etc., fuel rod is compacted at fuel forming machine after being shattered by fuel disintegrating machine, fuel rod is dropped in calcining kiln and burns, in calcining kiln, mud controls at 800 DEG C to 1000 DEG C, molding materials is sintered to mud and sewage process adsorbent, after the screening of finished product screen extension set, sieve out particle diameter at 4 ~ 6mm, obtain qualified mud and sewage process adsorbent storage to exist in sewage disposal adsorbent finished bin.
In sum, the invention has the beneficial effects as follows: with the mud of sewage treatment plant for primary raw material, a certain amount of auxiliary material in addition, additive, through overmolding, the lightweight sewage disposal adsorbent with some strength is made in decarburization and roasting, consumption dewatered sludge that can be a large amount of, advantage is that having perfect processing prepares mud and sewage process sorbent system technique, mud obtains recycling, in mud and sewage process sorbent system, clay usage ratio reduces, large amount of sewage process adsorbent is used in traditional handicraft, be conducive to protecting farmland, in mud and sewage process sorbent system, clay usage ratio reduces, by mud, active carbon, montmorillonite, curing agent, clay, additive mixes manufacture mud and sewage process adsorbent by a certain percentage, the superior performance of mud and sewage process adsorbent has wide range of applications, as removal organic pollutants filler, can reuse after cleaning.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment one: specifically comprise the steps: that (1) sludge of sewage treatment plant is collected in storage basin, mud, about 99.5%, is squeezed in sludge dewatering equipment and sludge drying machine by sludge pump, moisture percentage in sewage sludge is reduced to 60% by the moisture content of mud;
(2) then dewatered sludge is dropped in batching mixing arrangement, material proportion in general batching mixing arrangement: mud ratio is 38%, montmorillonite ratio is 45%, clay ratios is 7%, active carbon 5%, curing agent 2%, clay 2%, additive 1%, after being stirred by batching mixing arrangement, material is shaping at drum-type forming machine;
(3) shaping sifted separates the molding materials of size at 5mm, molding materials carries out roasting in calcining kiln, in molding materials, mud has certain calorific value, and add coal dust etc., fuel rod is compacted at fuel forming machine after being shattered by fuel disintegrating machine, fuel rod is dropped in calcining kiln and burns, in calcining kiln, mud controls at 900 DEG C, molding materials is sintered to mud and sewage process adsorbent, after the screening of finished product screen extension set, sieve out particle diameter at 4mm, obtain qualified mud and sewage process adsorbent storage to exist in sewage disposal adsorbent finished bin.
Embodiment two: specifically comprise the steps: that (1) sludge of sewage treatment plant is collected in storage basin, mud, about 99.1%, is squeezed in sludge dewatering equipment and sludge drying machine by sludge pump, moisture percentage in sewage sludge is reduced to 65% by the moisture content of mud;
(2) then dewatered sludge is dropped in batching mixing arrangement, material proportion in general batching mixing arrangement: mud ratio is 40%, montmorillonite ratio is 42%, clay ratios is 6%, active carbon 8%, curing agent 1.5%, clay 1.5%, additive 2%, after being stirred by batching mixing arrangement, material is shaping at drum-type forming machine;
(3) shaping sifted separates the molding materials of size at 6mm, molding materials carries out roasting in calcining kiln, in molding materials, mud has certain calorific value, and add coal dust etc., fuel rod is compacted at fuel forming machine after being shattered by fuel disintegrating machine, fuel rod is dropped in calcining kiln and burns, in calcining kiln, mud controls at 1000 DEG C, molding materials is sintered to mud and sewage process adsorbent, after the screening of finished product screen extension set, sieve out particle diameter at 5mm, obtain qualified mud and sewage process adsorbent storage to exist in sewage disposal adsorbent finished bin.
Facts have proved, sewage disposal adsorbent will be prepared and replace filter packing, as removal organic pollutants filler, effectively remove the difficult biochemical COD pollutant removed, as containing phenyl ring class organic pollution, can reuse after cleaning.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.

Claims (1)

1. fully utilize the method that mud prepares sewage disposal adsorbent, specifically comprise the steps:
(1) sludge of sewage treatment plant is collected in storage basin, and mud, more than 99%, is squeezed in sludge dewatering equipment and sludge drying machine by sludge pump, moisture percentage in sewage sludge is reduced to 60 ~ 65% by the moisture content of mud;
(2) then dewatered sludge is dropped in batching mixing arrangement, material proportion in batching mixing arrangement: mud ratio is 30 ~ 40%, montmorillonite ratio is 35 ~ 45%, clay ratios is 5 ~ 10%, active carbon 3 ~ 8%, curing agent 1 ~ 2%, clay 1 ~ 2%, additive 1 ~ 2%, after being stirred by batching mixing arrangement, material is shaping at drum-type forming machine;
(3) shaping sifted separates the molding materials of size at 3 ~ 8mm, molding materials carries out roasting in calcining kiln, in molding materials, mud has certain calorific value, and add coal dust etc., fuel rod is compacted at fuel forming machine after being shattered by fuel disintegrating machine, fuel rod is dropped in calcining kiln and burns, in calcining kiln, mud controls at 800 DEG C to 1000 DEG C, molding materials is sintered to mud and sewage process adsorbent, after the screening of finished product screen extension set, sieve out particle diameter at 4 ~ 6mm, obtain qualified mud and sewage process adsorbent storage to exist in sewage disposal adsorbent finished bin.
CN201510978536.5A 2015-12-24 2015-12-24 Method for preparing sewage treatment adsorbent by comprehensively utilizing sludge Pending CN105536685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510978536.5A CN105536685A (en) 2015-12-24 2015-12-24 Method for preparing sewage treatment adsorbent by comprehensively utilizing sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510978536.5A CN105536685A (en) 2015-12-24 2015-12-24 Method for preparing sewage treatment adsorbent by comprehensively utilizing sludge

Publications (1)

Publication Number Publication Date
CN105536685A true CN105536685A (en) 2016-05-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108212164A (en) * 2018-01-12 2018-06-29 中国科学院城市环境研究所 A kind of type Fenton catalyst and preparation method thereof
CN108408878A (en) * 2018-04-28 2018-08-17 南京工程学院 Biofilter filler and preparation method thereof
CN110538631A (en) * 2019-09-30 2019-12-06 苏州科技大学 Composite adsorbent based on water purification sludge and powdered activated carbon, preparation method and application

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765908A (en) * 1985-02-04 1988-08-23 Barbara Monick Process and composition for removing contaminants from wastewater
CN101804322A (en) * 2010-04-29 2010-08-18 东华大学 High-strength dry type CO2 adsorbent for regeneration using river sediment as carrier and preparation method thereof
CN102205964A (en) * 2011-04-25 2011-10-05 山东大学 Granular activated carbon filler for paper mill sludge and preparation method thereof
CN103127922A (en) * 2013-02-28 2013-06-05 绍兴伊诺环保科技有限公司 Production method of new adsorbent
CN103127905A (en) * 2011-12-01 2013-06-05 孟宪清 Preparative technique for bentonite particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765908A (en) * 1985-02-04 1988-08-23 Barbara Monick Process and composition for removing contaminants from wastewater
CN101804322A (en) * 2010-04-29 2010-08-18 东华大学 High-strength dry type CO2 adsorbent for regeneration using river sediment as carrier and preparation method thereof
CN102205964A (en) * 2011-04-25 2011-10-05 山东大学 Granular activated carbon filler for paper mill sludge and preparation method thereof
CN103127905A (en) * 2011-12-01 2013-06-05 孟宪清 Preparative technique for bentonite particles
CN103127922A (en) * 2013-02-28 2013-06-05 绍兴伊诺环保科技有限公司 Production method of new adsorbent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108212164A (en) * 2018-01-12 2018-06-29 中国科学院城市环境研究所 A kind of type Fenton catalyst and preparation method thereof
CN108212164B (en) * 2018-01-12 2021-01-15 中国科学院城市环境研究所 Fenton-like catalyst and preparation method thereof
CN108408878A (en) * 2018-04-28 2018-08-17 南京工程学院 Biofilter filler and preparation method thereof
CN110538631A (en) * 2019-09-30 2019-12-06 苏州科技大学 Composite adsorbent based on water purification sludge and powdered activated carbon, preparation method and application
CN110538631B (en) * 2019-09-30 2022-06-21 苏州科技大学 Composite adsorbent based on water purification sludge and powdered activated carbon, preparation method and application

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Application publication date: 20160504