CN104549173A - Preparation method and application of phosphorus-adsorbing material used in sewage - Google Patents

Preparation method and application of phosphorus-adsorbing material used in sewage Download PDF

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Publication number
CN104549173A
CN104549173A CN201510061451.0A CN201510061451A CN104549173A CN 104549173 A CN104549173 A CN 104549173A CN 201510061451 A CN201510061451 A CN 201510061451A CN 104549173 A CN104549173 A CN 104549173A
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CN
China
Prior art keywords
red mud
phosphorus
sewage
mud particle
preparation
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Pending
Application number
CN201510061451.0A
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Chinese (zh)
Inventor
钱锋
宋永会
吴俊奇
向连城
田智勇
王思宇
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Chinese Research Academy of Environmental Sciences
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Chinese Research Academy of Environmental Sciences
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Priority to CN201510061451.0A priority Critical patent/CN104549173A/en
Publication of CN104549173A publication Critical patent/CN104549173A/en
Pending legal-status Critical Current

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    • 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
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • 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
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • 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
    • 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
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention provides a preparation method and an application method of a phosphorus-adsorbing material used in sewage. The preparation method comprises the following steps of activating red mud, granulating and additionally mounting filter cylinders for red mud particles in distributed sewage treatment devices and filter tanks using the red mud particles as filler in an urban sewage treatment factory. The method is characterized in that the red mud particles having a phosphorus-adsorbing effect are prepared from activated red mud and auxiliary materials according to a certain condition. On the other hand, the invention also provides a method for adsorbing phosphorus by virtue of the red mud particles. The preparation method and application methods of the phosphorus-adsorbing material have the advantages that the red mud is recycled and a good sewage phosphorus removal effect and low sewage treatment cost are achieved.

Description

The preparation and application of phosphor in sewage sorbing material
Technical field
The present invention relates to a kind of preparation of sewage treatment function material, be mainly used in the sewage treatment area such as city centralized wastewater treatment, Industrial Wastewater Treatment, particularly decentralized wastewater process, remove the phosphorus in sewage by this materials adsorption.
Background technology
In sewage disposal, the removal of phosphorus has chemical dephosphorization and biological phosphate-eliminating two kinds of methods, biological phosphate-eliminating is a kind of phosphorus removing method of relatively economical, during Wastewater Treated by Activated Sludge Process sewage, activated sludge is alternately run under anaerobic and aerobic state, the phosphatic phosphorus fungus of excess accumulation can be made to preponderate growth, make activated sludge phosphorus content higher than ordinary activated sludge.In mud, phosphorus fungus discharges phosphorus under anaerobic state, under good oxygen condition, excessively absorb phosphorus.Through the rich phosphorus excess sludge of discharge, its result, compared with conventional activated sludge process, can remove more phosphorus in sewage.
But because this dephosphorization process can't ensure the stable requirement reaching 0.5mg/L Effluent criteria at present, so stable Effluent criteria will be reached, often need to take chemical dephosphorization measure to meet the demands.Simultaneously in small-scale sewage-treatment plant, mud cannot be carried out process simultaneously and dispose, need mud to store, cannot biological phosphate-eliminating be carried out in this case, also need to adopt chemical dephosphorization measure.
Chemistry place phosphorus has been come by chemisorbed or chemical precipitation.Chemical precipitation refers to by adding inorganic metal salt medicament in sewage, or electrolysis iron plate Iron Release ion, after it mixes with phosphate deliquescent in sewage, forms the material of graininess, non-solubility, removes the phosphorus in sewage by precipitation.According to the basis of chemical precipitation reaction, in order to generate phosphate compounds, for chemical agent mainly slaine medicament and the calcium hydroxide (white lime) of chemical dephosphorization.After in many high volence metal ion adding of agents to sewage, all can generate the compound of insoluble with the dissolved phosphorus ions binding in sewage.For economic reasons, for the slaine medicament mainly Fe of phosphorus precipitation 3+, Al 3+and Fe 2+salt and lime.
Chemisorbed is the phosphorus by having in the materials adsorption sewage of adsorption function, and after reaching capacity, take out sorbing material carry out desorption, then sorbing material reuses.
The Biological Phosphorus Removal Processes of sewage requires that mud will be removed, and cannot adopt in the small-scale sewage disposal can not removing mud, and Biological Phosphorus Removal Processes can't ensure the stable requirement reaching 0.5mg/L Effluent criteria at present simultaneously.Chemical precipitation method dephosphorization has the good feature of phosphor-removing effect, but medicament costly.
Summary of the invention
In view of this, the invention provides a kind of preparation method of adsorption and dephosphorization material, which overcome the above-mentioned shortcoming of existing biological phosphate-eliminating and chemical precipitation dephosphorization process.
Red mud (Red Mud) is the Al in the process of aluminium industry in various physics, chemical technology extraction bauxite 2o 3solid pollution waste residue remaining after composition, because being kermesinus containing iron oxide, therefore is referred to as red mud (also having red mud to present canescence because iron oxide content is less).
Because Powdered red mud is difficult to apply in engineering, therefore be made into granular, Powdered red mud is made red mud particulate adsorbent material as follows: primary raw material: activation red mud (300 orders, Powdered red mud activates 2h with 700 DEG C in Muffle furnace); Auxiliary material: flyash (exciting agent), bentonite (adhesive), sodium acid carbonate (blowing agent).
Primary raw material and auxiliary material are pressed formula: activation red mud: flyash: sodium acid carbonate: bentonite ratio is 16: 2: 1: 3, add 18 parts of water after mixing and stir into paste, be twisted into and cylindricly put into pellet processing machine, make the ball that diameter is about 4-8mm, maintenance 24 hours under room temperature, put into Muffle furnace, 450 DEG C of insulation 30min, 1100 DEG C of calcining 20min.Naturally take out after cooling, naturally dry after washing, then 105 DEG C of oven dry.
Above-mentioned red mud particle is used for the removal of phosphorus in decentralized type sewage process, the red mud particle of above-mentioned preparation puts into diameter 10-30cm, in the filtration cylinder of long 40-80cm, filter the sedimentation basin that cylinder puts into decentralized type sewage treating apparatus, water in sedimentation basin is intake bottom filter cylinder, by top water outlet, the red mud absorption of the phosphorus in sedimentation basin water in filter cylinder is removed.Also red mud particle can be put into city formula sewage treatment plant filter tank as filtering material, sewage after filter phosphorus by Adsorption.
Detailed description of the invention
In decentralized type sewage processing procedure, the red mud particle of above-mentioned preparation is put into diameter 10-30cm, in the filtration cylinder of long 40-80cm, filter the sedimentation basin that cylinder puts into decentralized type sewage treating apparatus, water in sedimentation basin is intake bottom filter cylinder, and by top water outlet, the red mud absorption of the phosphorus in sedimentation basin water in filter cylinder is removed, after red mud particle reaches capacity, take out sorbing material carry out desorption, then sorbing material reuses.
In municipal sewage treatment process, the red mud particle of above-mentioned preparation is put into filter tank, the sewage of municipal sewage plant is after sedimentation in secondary sedimentation tank, enter the filter tank that red mud particle is filler, phosphorus in sewage is removed after red mud granular absorption, after red mud particle reaches capacity, take out sorbing material carry out desorption, then sorbing material reuses.

Claims (3)

1. phosphorus sorbing material preparation method in a sewage disposal: primary raw material and auxiliary material are pressed formula: activation red mud: flyash: sodium acid carbonate: bentonite ratio is 16: 2: 1: 3, add 18 parts of water after mixing and stir into paste, be twisted into and cylindricly put into pellet processing machine, make the ball that diameter is about 4-8mm, maintenance 24 hours under room temperature, put into Muffle furnace, 450 DEG C of insulation 30min, 1100 DEG C of calcining 20min.Naturally take out after cooling, naturally dry after washing, then 105 DEG C of oven dry.The red mud particle made can remove the phosphorus in sewage as adsorbent.
2. red mud particle according to claim 1 is used for the removal of phosphorus in decentralized type sewage treating apparatus, it is characterized in that: the red mud particle of preparation described in claim 1 is put into diameter 10-30cm, in the filtration cylinder of long 40-80cm, filter the sedimentation basin that cylinder puts into decentralized type sewage treating apparatus, water in sedimentation basin is intake bottom filter cylinder, by top water outlet, the red mud absorption of the phosphorus in sedimentation basin water in filter cylinder is removed.After red mud particle reaches capacity, take out sorbing material carry out desorption, then sorbing material reuses.
3. red mud particle according to claim 1 is used for the removal of phosphorus in municipal sewage plant, it is characterized in that: the red mud particle of preparation described in claim 1 is put into filter tank, the sewage of municipal sewage plant is after sedimentation in secondary sedimentation tank, enter the filter tank that red mud particle is filler, the phosphorus in sewage is removed after red mud granular absorption.After red mud particle reaches capacity, take out sorbing material carry out desorption, then sorbing material reuses.
CN201510061451.0A 2015-02-06 2015-02-06 Preparation method and application of phosphorus-adsorbing material used in sewage Pending CN104549173A (en)

Priority Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152340A (en) * 2015-06-23 2015-12-16 西安建筑科技大学 Red mud phosphate-removing filling material for constructed wetland and preparation method thereof
CN106311129A (en) * 2016-08-31 2017-01-11 中国环境科学研究院 Preparation method and application of efficient removing materials for interstitial water phosphate of sediments
CN108048109A (en) * 2017-12-20 2018-05-18 北京东方复地环境科技有限公司 It is a kind of for multi-functional passivator of paddy fields in south china heavy metal-polluted soil Cd and preparation method thereof
CN108404880A (en) * 2018-05-28 2018-08-17 苏州佑君环境科技有限公司 A kind of preparation method of inorganic dephosphorization adsorbent
CN113105165A (en) * 2021-03-02 2021-07-13 山西农业大学 Ecological slope protection material and preparation method thereof
CN113620539A (en) * 2021-08-30 2021-11-09 中国一冶集团有限公司 Efficient control method for wetland phosphorus pollution

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CN1981921A (en) * 2005-12-14 2007-06-20 中国科学院生态环境研究中心 High-activity mud adsorbent and its production
CN101143312A (en) * 2006-09-12 2008-03-19 中国科学院生态环境研究中心 Method for manufacturing and regenerating granular red mud absorber used for water process
CN101665279A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Flocculating agent for removing phosphor with low concentration in water
CN102115234A (en) * 2009-12-30 2011-07-06 中国科学院生态环境研究中心 Preparation method of flocculant capable of removing phosphate from red mud
CN102730784A (en) * 2012-07-17 2012-10-17 华北电力大学 Method for removing nitrogen and phosphorus by modifying sintered red mud

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CN1981921A (en) * 2005-12-14 2007-06-20 中国科学院生态环境研究中心 High-activity mud adsorbent and its production
CN101143312A (en) * 2006-09-12 2008-03-19 中国科学院生态环境研究中心 Method for manufacturing and regenerating granular red mud absorber used for water process
CN101665279A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Flocculating agent for removing phosphor with low concentration in water
CN102115234A (en) * 2009-12-30 2011-07-06 中国科学院生态环境研究中心 Preparation method of flocculant capable of removing phosphate from red mud
CN102730784A (en) * 2012-07-17 2012-10-17 华北电力大学 Method for removing nitrogen and phosphorus by modifying sintered red mud

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张玉洁: "改性赤泥吸附除磷性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152340A (en) * 2015-06-23 2015-12-16 西安建筑科技大学 Red mud phosphate-removing filling material for constructed wetland and preparation method thereof
CN106311129A (en) * 2016-08-31 2017-01-11 中国环境科学研究院 Preparation method and application of efficient removing materials for interstitial water phosphate of sediments
CN106311129B (en) * 2016-08-31 2018-11-02 中国环境科学研究院 A kind of preparation method of the efficient material removal of sediment interstitial water phosphate and application
CN108048109A (en) * 2017-12-20 2018-05-18 北京东方复地环境科技有限公司 It is a kind of for multi-functional passivator of paddy fields in south china heavy metal-polluted soil Cd and preparation method thereof
CN108404880A (en) * 2018-05-28 2018-08-17 苏州佑君环境科技有限公司 A kind of preparation method of inorganic dephosphorization adsorbent
CN113105165A (en) * 2021-03-02 2021-07-13 山西农业大学 Ecological slope protection material and preparation method thereof
CN113620539A (en) * 2021-08-30 2021-11-09 中国一冶集团有限公司 Efficient control method for wetland phosphorus pollution

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