CN111632432A - Plush filter cloth for heavy metal ion sewage treatment - Google Patents

Plush filter cloth for heavy metal ion sewage treatment Download PDF

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Publication number
CN111632432A
CN111632432A CN202010538886.0A CN202010538886A CN111632432A CN 111632432 A CN111632432 A CN 111632432A CN 202010538886 A CN202010538886 A CN 202010538886A CN 111632432 A CN111632432 A CN 111632432A
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CN
China
Prior art keywords
filter cloth
solution
plush
plush filter
sewage treatment
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Pending
Application number
CN202010538886.0A
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Chinese (zh)
Inventor
陈冬
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.)
Anhui Xin Yu Xuan Environmental Protection Technology Co ltd
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Anhui Xin Yu Xuan Environmental Protection Technology Co ltd
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Filing date
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Application filed by Anhui Xin Yu Xuan Environmental Protection Technology Co ltd filed Critical Anhui Xin Yu Xuan Environmental Protection Technology Co ltd
Priority to CN202010538886.0A priority Critical patent/CN111632432A/en
Publication of CN111632432A publication Critical patent/CN111632432A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D27/00—Woven pile fabrics
    • D03D27/02—Woven pile fabrics wherein the pile is formed by warp or weft
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/09—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by jets of gases
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06G—MECHANICAL OR PRESSURE CLEANING OF CARPETS, RUGS, SACKS, HIDES, OR OTHER SKIN OR TEXTILE ARTICLES OR FABRICS; TURNING INSIDE-OUT FLEXIBLE TUBULAR OR OTHER HOLLOW ARTICLES
    • D06G1/00—Beating, brushing, or otherwise mechanically cleaning or pressure cleaning carpets, rugs, sacks, hides, or other skin or textile articles or fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/345—Nitriles
    • D06M13/348—Nitriles unsaturated, e.g. acrylonitrile
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/368—Hydroxyalkylamines; Derivatives thereof, e.g. Kritchevsky bases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • 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
    • C02F2101/20—Heavy metals or heavy metal compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention discloses plush filter cloth for heavy metal ion sewage treatment, which is characterized in that the plush filter cloth for sewage treatment selects a bottom cloth layer and a fluff layer, the bottom cloth layer selects artificial fibers, the artificial fibers selected by the bottom cloth layer are woven by warps and wefts, the fluff layer is formed by artificial fibers with the length of 5-20 mm, and the bottom cloth and the fluff layer are woven together in a weaving manner, and the plush filter cloth comprises the following steps: s1: cleaning; s2: drying; s3: preparing a solution; s4: plush filter cloth; s5: adding an acrylonitrile standard solution; s6: hydroxylamine hydrochloride treatment; the plush filter cloth is subjected to the treatment of sodium hydroxide, acrylonitrile standard solution and hydroxylamine hydrochloride solution in use through the steps of S4, S5 and S6, so that the overall corrosion resistance of the plush filter cloth and the flexibility of the plush layer therein are greatly increased, the service life of the plush filter cloth is greatly prolonged in use, the cost is reduced, and the filtering effect is enhanced.

Description

Plush filter cloth for heavy metal ion sewage treatment
Technical Field
The invention relates to the technical field of sewage treatment filter cloth, in particular to plush filter cloth for heavy metal ion sewage treatment.
Background
The filter cloth mainly includes: dacron filter cloth, polypropylene fiber filter cloth, polyamide fiber filter cloth, vinylon fiber filter cloth. The material performance of the filter cloth is as follows: acid resistance and weak base resistance. Good wear resistance, corrosion resistance, recoverability and poor conductivity. The temperature resistance of the terylene fiber is generally 130-150 ℃, and the product has the special advantages of common felt filter cloth, has very good wear resistance and very high cost performance and becomes the variety with the largest use amount in felt filter materials. The monofilament filter cloth takes various monofilaments (commonly called heddles) as raw materials and is divided into four categories of terylene, chinlon, polypropylene and ethylene. The product has the excellent performances of high filtration efficiency, easy cake removal, easy cleaning, high strength and long service life after surface heat treatment and press polishing treatment, and is a new generation of filtration material. 12870 is a new filter cloth specially developed by the factory, and has more excellent performance. The fabric can be made of different materials, different specifications and different weave structures to form various monofilament filter cloths with different filtering performances and appearances, and can meet the filtering requirement that the filtering precision is more than 0.005 mu m. The filter is widely applied to solid-liquid separation equipment for plate-and-frame filter pressing, belt type filtration, disc and vertical disc filtration and the like in the industries of nonferrous metal smelting, chemical industry, coal, food and the like.
However, the existing plush filter cloth treatment method has the following defects after treatment:
the plush filter cloth in the prior art is directly put into use after being manufactured, and when the plush filter cloth is actually used, heavy metal is filtered in waste water and simultaneously a great deal of corrosion is generated, so that the service life of the plush filter cloth is greatly prolonged, the filtering effect of the plush filter cloth is greatly reduced after corrosion, and a great deal of impurities are generated, thereby being incapable of meeting the requirements of the prior art.
Disclosure of Invention
The invention aims to provide plush filter cloth for heavy metal ion sewage treatment, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a plush filter cloth used for heavy metal ion sewage treatment, sewage treatment use said plush cloth choose base cloth layer and tapetum, said base cloth layer choose artificial fiber by warp and weft to weave, said tapetum adopt the length to be 5-20 millimetres artificial fiber silk form, weave said base cloth with tapetum together by way of weaving, including the following steps:
s1: cleaning, namely injecting sufficient water into a water tank, adding a cleaning solution, soaking the plush filter cloth in the cleaning solution, swinging the plush filter cloth back and forth in the soaking process, taking the plush filter cloth out of clear water after primary cleaning is finished to rinse the plush filter cloth so as to ensure that no cleaning solution is left, taking the plush filter cloth out, and washing the plush filter cloth in a water spraying manner;
s2: drying, namely placing the plush filter cloth cleaned in the step S1 in a sunlight room for airing, and blowing the plush filter cloth by a fan to accelerate the drying process;
s3: preparing a solution, namely preparing sufficient NaOH and sufficient water, then placing the NaOH in the water, stirring to ensure that NaOH crystals are completely dissolved, and keeping the concentration of the NaOH solution at 0.5-1.5mol/L in the preparation process;
s4: completely soaking the plush filter cloth dried in the S2 in the NaOH solution prepared in the S3, starting a heater to ensure that the solution temperature is 35 ℃, and keeping oscillation by an ultrasonic oscillator to complete the activation process of the filter cloth;
s5: adding an acrylonitrile standard solution, namely adding a proper amount of acrylonitrile standard solution into the activated NaOH solution of S4, stirring to ensure that the acrylonitrile standard solution is fully mixed, simultaneously ensuring that the temperature in a treatment pool is kept at 35 ℃, standing for 12 hours, taking out, and fully cleaning by clear water;
s6: and (3) hydroxylamine hydrochloride treatment, namely soaking the plush filter cloth obtained in the step (S5) in hydroxylamine hydrochloride solution, adjusting the pH value of the solution, and adjusting the temperature of the solution to 65 ℃ after the adjustment to fully react.
Preferably, the shaking in step S4 is maintained for 7 hours, and the process requires the care of staff to ensure that the solution does not splash.
Preferably, the amount of the acrylonitrile solution added in step S5 is 15 to 20 wt% based on the concentration of the NaOH solution.
Preferably, the concentration of the hydroxylamine hydrochloride solution in the step S6 is 0.1-1.3mol/L, and the pH value of the hydroxylamine hydrochloride solution is adjusted to be 6-7.
Preferably, in the step S6, the reaction time of the plush filter cloth in the hydroxylamine hydrochloride solution is controlled to be 2-5 h.
Preferably, the operator in step S5 should wear protective clothing and gas masks to avoid fire spark and strong light during the treatment process.
Preferably, the ultrasonic oscillator in step S4 is an ultrasonic cleaning machine with model number ps-100A.
Preferably, in step S2, after drying, dust accumulation is prevented, and the plush filter cloth is blown by a powerful blower to remove dust on the surface.
Compared with the prior art, the invention has the beneficial effects that:
the plush filter cloth is subjected to the treatment of sodium hydroxide, acrylonitrile standard solution and hydroxylamine hydrochloride solution in use through the steps of S4, S5 and S6, so that the overall corrosion resistance of the plush filter cloth and the flexibility of the plush layer therein are greatly increased, the service life of the plush filter cloth is greatly prolonged in use, the cost is reduced, and the filtering effect is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A plush filter cloth for heavy metal ion sewage treatment, the sewage treatment uses the plush cloth choose base cloth layer and tapetum, the said base cloth layer chooses the artificial fiber, the artificial fiber that the said base cloth layer chooses is woven by warp and woof and formed, the said tapetum uses the artificial fiber silk with length of 5-20 millimetres to form, weave the said base cloth together with tapetum by way of weaving, characterized by that, comprising the following steps:
s1: the cleaning method comprises the steps of firstly injecting sufficient water into a water tank, then adding cleaning solution, then soaking the plush filter cloth in the cleaning solution, swinging back and forth in the soaking process, taking the plush filter cloth out after primary cleaning is finished, rinsing the plush filter cloth in clear water to ensure that no cleaning solution is remained, taking the plush filter cloth out, and then washing the plush filter cloth in a water spraying mode.
Wherein the cleaning is intended to avoid processes that would interfere with the operation at a later stage of operation.
S2: and (4) drying, namely placing the plush filter cloth cleaned in the step S1 in a sunlight room for airing, and blowing air to the plush filter cloth by adopting a fan to accelerate the drying process of the plush filter cloth.
Wherein, prevent after the drying completion that the dust from piling up and blow the plush filter cloth and dispel the surperficial dust with strong fan, the drying process effect lies in avoiding the concentration of each material when water that exists among the later stage cleaning process can influence the post treatment, influences its treatment effect.
S3: preparing solution, preparing sufficient NaOH and sufficient water, then placing the NaOH in the water, stirring to ensure that NaOH crystals are completely dissolved, and keeping the concentration of the NaOH solution to be 0.5-1.5mol/L in the preparation process.
S4: and (3) plush filter cloth, completely soaking the plush filter cloth dried in the S2 in the NaOH solution prepared in the S3, starting a heater to ensure that the temperature of the solution is 35 ℃, and keeping oscillation by an ultrasonic oscillator to complete the activation process of the filter cloth.
The ultrasonic oscillator is an ultrasonic cleaning machine with the model of ps-100A, oscillation is kept for 7 hours, a worker is required to nurse and guarantee in the process, the solution cannot splash, and the NaOH solution treatment effect is to treat surface impurities.
S5: and adding an acrylonitrile standard solution, namely adding a proper amount of the acrylonitrile standard solution into the activated NaOH solution of S4, stirring to ensure that the acrylonitrile standard solution is fully mixed, simultaneously ensuring that the temperature in a treatment pool is kept at 35 ℃, standing for 12h, taking out, and fully cleaning by using clear water.
Wherein, the operator must wear protective clothing and gas mask, the environment avoids naked light electric spark and intense illumination in the processing procedure, the addition of the acrylonitrile solution is 15-20 wt% relative to the concentration of NaOH solution.
S6: and (3) hydroxylamine hydrochloride treatment, namely soaking the plush filter cloth obtained in the step (S5) in hydroxylamine hydrochloride solution, adjusting the pH value of the solution, and adjusting the temperature of the solution to 65 ℃ after the adjustment to fully react.
Wherein the concentration of the hydroxylamine hydrochloride solution is 0.1-1.3mol/L, the pH value of the hydroxylamine hydrochloride solution is adjusted to be controlled between 6-7, and the reaction time of the plush filter cloth in the hydroxylamine hydrochloride solution is controlled to be 2-5 h.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (8)

1. A plush filter cloth for heavy metal ion sewage treatment, the sewage treatment uses the plush cloth choose base cloth layer and tapetum, the said base cloth layer chooses the artificial fiber, the artificial fiber that the said base cloth layer chooses is woven by warp and woof and formed, the said tapetum uses the artificial fiber silk with length of 5-20 millimetres to form, weave the said base cloth together with tapetum by way of weaving, characterized by that, comprising the following steps:
s1: cleaning, namely injecting sufficient water into a water tank, adding a cleaning solution, soaking the plush filter cloth in the cleaning solution, swinging the plush filter cloth back and forth in the soaking process, taking the plush filter cloth out of clear water after primary cleaning is finished to rinse the plush filter cloth so as to ensure that no cleaning solution is left, taking the plush filter cloth out, and washing the plush filter cloth in a water spraying manner;
s2: drying, namely placing the plush filter cloth cleaned in the step S1 in a sunlight room for airing, and blowing the plush filter cloth by a fan to accelerate the drying process;
s3: preparing a solution, namely preparing sufficient NaOH and sufficient water, then placing the NaOH in the water, stirring to ensure that NaOH crystals are completely dissolved, and keeping the concentration of the NaOH solution at 0.5-1.5mol/L in the preparation process;
s4: completely soaking the plush filter cloth dried in the S2 in the NaOH solution prepared in the S3, starting a heater to ensure that the solution temperature is 35 ℃, and keeping oscillation by an ultrasonic oscillator to complete the activation process of the filter cloth;
s5: adding an acrylonitrile standard solution, namely adding a proper amount of acrylonitrile standard solution into the activated NaOH solution of S4, stirring to ensure that the acrylonitrile standard solution is fully mixed, simultaneously ensuring that the temperature in a treatment pool is kept at 35 ℃, standing for 12 hours, taking out, and fully cleaning by clear water;
s6: and (3) hydroxylamine hydrochloride treatment, namely soaking the plush filter cloth obtained in the step (S5) in hydroxylamine hydrochloride solution, adjusting the pH value of the solution, and adjusting the temperature of the solution to 65 ℃ after the adjustment to fully react.
2. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein, the oscillation in the step S4 is kept for 7 hours, and the solution does not splash out due to the nursing of staff in the process.
3. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein the acrylonitrile solution is added in the step S5 in an amount of 15 to 20 wt% based on the concentration of the NaOH solution.
4. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein the concentration of the hydroxylamine hydrochloride solution in the step S6 is 0.1-1.3mol/L, and the pH value of the hydroxylamine hydrochloride solution is adjusted to be 6-7.
5. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein, the reaction time of the plush filter cloth in the hydroxylamine hydrochloride solution in the step S6 is controlled to be 2-5 h.
6. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: in step S5, the operator must wear protective clothing and gas masks to avoid open fire, spark, and strong light during the treatment process.
7. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein, the ultrasonic oscillator in the step S4 is an ultrasonic cleaning machine with model number ps-100A.
8. The plush filter cloth for heavy metal ion sewage treatment as claimed in claim 1, wherein: wherein, after the drying in the step S2 is finished, dust accumulation is prevented, and the plush filter cloth is blown by a strong fan to remove the dust on the surface.
CN202010538886.0A 2020-06-13 2020-06-13 Plush filter cloth for heavy metal ion sewage treatment Pending CN111632432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010538886.0A CN111632432A (en) 2020-06-13 2020-06-13 Plush filter cloth for heavy metal ion sewage treatment

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Application Number Priority Date Filing Date Title
CN202010538886.0A CN111632432A (en) 2020-06-13 2020-06-13 Plush filter cloth for heavy metal ion sewage treatment

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Publication Number Publication Date
CN111632432A true CN111632432A (en) 2020-09-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113788564A (en) * 2021-09-28 2021-12-14 湖北三雄科技发展有限公司 Method for treating and comprehensively utilizing mixed wastewater

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113788564A (en) * 2021-09-28 2021-12-14 湖北三雄科技发展有限公司 Method for treating and comprehensively utilizing mixed wastewater

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Application publication date: 20200908