CN114084974B - Glass grinding fluid treatment method - Google Patents
Glass grinding fluid treatment method Download PDFInfo
- Publication number
- CN114084974B CN114084974B CN202111391319.8A CN202111391319A CN114084974B CN 114084974 B CN114084974 B CN 114084974B CN 202111391319 A CN202111391319 A CN 202111391319A CN 114084974 B CN114084974 B CN 114084974B
- Authority
- CN
- China
- Prior art keywords
- liquid
- ultrafiltration
- ceramic membrane
- cerium oxide
- polishing powder
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
-
- 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
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/12—Nature of the water, waste water, sewage or sludge to be treated from the silicate or ceramic industries, e.g. waste waters from cement or glass factories
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention relates to the technical field of chemical technology and resource recycling, in particular to a method for treating glass grinding fluid, which has the advantages of simple process flow, low equipment requirement and small equipment occupation area, can completely recycle the polishing powder in cerium oxide polishing powder waste liquid, can completely recycle water, can realize zero emission of the cerium oxide polishing powder waste liquid, and is economical, environment-friendly and low in energy consumption; the method comprises the following steps: step one: pretreating glass grinding liquid waste liquid by a filter screen to remove larger solid particles, thereby obtaining pretreatment liquid I; step two, a step two is carried out; introducing the pretreatment liquid I into a ceramic membrane ultrafiltration system to obtain clear colorless transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II; step three: introducing the ultrafiltration concentrated solution II into a centrifugal system to obtain cerium oxide mud containing a small amount of water and liquid III containing trace solid particles; step four: and returning the liquid III containing the trace solid particles to the step two, and entering a ceramic membrane ultrafiltration system.
Description
Technical Field
The invention relates to the technical fields of chemical technology and resource recycling, in particular to a method for treating glass grinding fluid.
Background
Cerium oxide can polish glass simultaneously in two forms of chemical decomposition and mechanical friction, has the advantages of small dosage, high polishing speed and high polishing efficiency, and is widely applied to grinding and polishing of flat glass, but the particle size of cerium oxide is 0.5-1.5 mu m, so that the fine particle treatment is difficult.
In the prior art, oxidized polishing powder is used as the grinding and polishing of a plate glass base, the solid content in the waste liquid of the polishing powder after use is about 0.5%, and because the particle size of solid particles in the waste liquid of the polishing powder is small and the waste liquid is not easy to settle, the waste liquid is added with flocculating agents such as polyacrylamide, polyaluminum and the like, and after the flocculating agents are settled, the material liquid at the bottom layer is conveyed to a half frame system for decoloration, so that waste mud with 70% of dry solids is obtained.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for treating glass grinding fluid, which has the advantages of simple process flow, low equipment requirement and small equipment occupation area, not only can completely recover polishing powder in cerium oxide polishing powder waste liquid, but also can completely recover and recycle water, can realize zero discharge of the cerium oxide polishing powder waste liquid, and is economical, environment-friendly and low in energy consumption.
The invention relates to a method for treating glass grinding fluid, which comprises the following steps:
step one: pretreating glass grinding liquid waste liquid by a filter screen to remove larger solid particles, thereby obtaining pretreatment liquid I;
step two, a step two is carried out; introducing the pretreatment liquid I into a ceramic membrane ultrafiltration system to obtain clear colorless transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II;
step three: introducing the ultrafiltration concentrated solution II into a centrifugal system to obtain cerium oxide mud containing a small amount of water (the main components of the glass grinding waste liquid are cerium oxide and trace glass powder) and liquid III containing trace solid particles;
step four: and returning the liquid III containing the trace solid particles to the step two, and entering a ceramic membrane ultrafiltration system.
Further, the filter screen in the first step is 200 meshes.
Further, the parameters of the ceramic membrane ultrafiltration system in the second step are as follows: the pore diameter of the ultrafiltration tube type ceramic membrane is 10-200nm, the operating temperature is 30-60 ℃, the operating pressure is 0.1-0.4MPa, and the concentration multiple is 5-20 times.
Further, the rotating speed of the centrifugal system in the third step is 3000-8000 rpm.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts a pure physical separation process route to treat the cerium oxide polishing powder waste liquid, and adopts a ceramic membrane and centrifugation process, wherein the processes are all physical processes, and the process is simple, the operation is convenient, the occupied area of equipment is small, and the energy consumption is low;
(2) The material rate and the clear liquid quality of the treatment are superior to those of the traditional process, no new chemical agent is introduced, and no solid waste is generated;
(3) The invention can recycle all polishing powder particles in the cerium oxide polishing powder waste liquid, the treated water can be recycled, the recycled cerium oxide polishing powder can be used as a byproduct, the income of enterprises is increased, the zero discharge treatment of the cerium oxide polishing powder waste liquid is realized, and the recycling and reutilization of resources are realized, thereby being environment-friendly.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The invention provides a treatment method of cerium oxide polishing powder waste liquid, which comprises the following steps: 1) The pretreatment step of cerium oxide polishing powder waste liquid: filtering the cerium oxide polishing powder waste liquid by a 200-mesh filter screen, and removing larger solid particles to prevent blocking or losing a flow passage of the tubular ceramic membrane to obtain pretreatment liquid I; 2) Introducing the pretreatment liquid I into a tubular ceramic membrane ultrafiltration system for solid-liquid separation to realize concentration and enrichment of solid particles, and obtaining colorless, clear and transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II of cerium oxide polishing powder, wherein the pore diameter of the ultrafiltration tubular ceramic membrane is 10-200nm, the operating temperature is 30-60 ℃, the operating pressure is 0.1-0.4MPa, and the concentration multiple is 5-20 times; 3) Introducing the ultrafiltration concentrated solution II into a centrifugal system (the rotating speed is 3000-8000 rpm) to realize solid separation, and obtaining oxidized polishing powder byproducts with the dry weight of 40-50% and centrifugal water containing a small amount of solid particles; 4) And returning the liquid III containing a small amount of solid particles to a ceramic membrane ultrafiltration system to remove the solid particles, so as to realize the complete recycling of water.
According to the ceramic membrane and centrifugal process, concentration and enrichment of solid particles of cerium oxide polishing powder waste liquid are carried out through an ultrafiltration tube type ceramic membrane, so that high-concentration cerium oxide polishing powder ultrafiltration concentrate II and colorless, clear and transparent ultrafiltration clear liquid can be obtained, and the cerium oxide polishing powder can be recovered after the ultrafiltration concentrate II is centrifuged; wherein, the recovery rate of the cerium oxide polishing powder is 100 percent, and the ultrafiltration clear liquid treated by the tubular ceramic ultrafiltration membrane reaches the recycling standard and can be completely recycled.
Example 1
Taking 300kg of cerium oxide polishing powder waste liquid, filtering the cerium oxide polishing powder waste liquid by a 200-mesh stainless steel filter screen, and removing larger solid particles to prevent blockage or loss of a flow passage of the tubular ceramic membrane, thereby obtaining pretreatment liquid I; concentrating the obtained pretreatment liquid I through a 50nm ceramic membrane to obtain colorless, clear and transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II, wherein the average flux of ultrafiltration is 300LMH; introducing the ultrafiltration concentrated solution II into a centrifugal system for solid-liquid separation to obtain cerium oxide polishing powder solid with the dry solids of 40-50% and liquid III containing trace individual particles; returning the liquid III to a ceramic membrane ultrafiltration system for further water recovery; the recovery rate of the cerium oxide polishing powder in the cerium oxide polishing powder wastewater is 100%, water can be completely recovered and reused, and the flux of the ceramic membrane is completely recovered by 100% after the ceramic membrane is cleaned.
Example 2
Taking 300kg of cerium oxide polishing powder waste liquid, filtering the cerium oxide polishing powder waste liquid by a 200-mesh stainless steel filter screen, and removing larger solid particles to prevent blockage or loss of a flow passage of the tubular ceramic membrane, thereby obtaining pretreatment liquid I; concentrating the obtained pretreatment liquid I through a 200nm ceramic membrane to obtain colorless, clear and transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II, wherein the ultrafiltration flux is 150LMH; and (3) introducing the ultrafiltration concentrated solution II into a centrifugal system for solid-liquid separation to obtain cerium oxide polishing powder solid with the dry solid content of 40-50% and liquid III containing trace individual particles, and recovering the flux of the ceramic membrane by 60% after cleaning.
Example 3
Taking 300kg of cerium oxide polishing powder waste liquid, filtering the cerium oxide polishing powder waste liquid by a 200-mesh stainless steel filter screen, and removing larger solid particles to prevent blockage or loss of a flow passage of the tubular ceramic membrane, thereby obtaining pretreatment liquid I; concentrating the obtained pretreatment liquid I through a 30nm ceramic membrane to obtain colorless, clear and transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II, wherein the average flow rate of the clear liquid is 300LMH; introducing the ultrafiltration concentrated solution II into a centrifugal system for solid-liquid separation to obtain cerium oxide polishing powder solid with the dry solids of 40-50% and liquid III containing trace individual particles; returning the liquid III to a ceramic membrane ultrafiltration system for further water recovery; the recovery rate of the cerium oxide polishing powder in the cerium oxide polishing powder wastewater is 100%, water can be completely recovered and reused, and flux of the ceramic membrane is completely recovered after the ceramic membrane is cleaned.
Example 4
Taking 300kg of cerium oxide polishing powder waste liquid, filtering the cerium oxide polishing powder waste liquid by a 200-mesh stainless steel filter screen, and removing larger solid particles to prevent blockage or loss of a flow passage of the tubular ceramic membrane, thereby obtaining pretreatment liquid I; concentrating the obtained pretreatment liquid I through a 10nm ceramic membrane to obtain colorless, clear and transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II, wherein the average flux of the clear liquid is 75LMH; introducing the ultrafiltration concentrated solution II into a centrifugal system for solid-liquid separation to obtain cerium oxide polishing powder solid with the dry solids of 40-50% and liquid III containing trace individual particles; returning the liquid III to a ceramic membrane ultrafiltration system for further water recovery; the recovery rate of the cerium oxide polishing powder in the cerium oxide polishing powder wastewater is 100%, water can be completely recovered and reused, and flux of the ceramic membrane is completely recovered after the ceramic membrane is cleaned.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (1)
1. A method for treating a glass polishing liquid, comprising:
step one: pretreating glass grinding liquid waste liquid by a filter screen to remove larger solid particles, thereby obtaining pretreatment liquid I;
step two, a step two is carried out; introducing the pretreatment liquid I into a ceramic membrane ultrafiltration system to obtain clear colorless transparent ultrafiltration clear liquid and ultrafiltration concentrated liquid II;
step three: introducing the ultrafiltration concentrated solution II into a centrifugal system to obtain cerium oxide mud containing a small amount of water and liquid III containing trace solid particles;
step four: returning the liquid III containing the trace solid particles to the second step, and entering a ceramic membrane ultrafiltration system;
the filter screen in the first step is 200 meshes;
the parameters of the ceramic membrane ultrafiltration system in the second step are as follows: the pore diameter of the ultrafiltration tube type ceramic membrane is 10-200nm, the operating temperature is 30-60 ℃, the operating pressure is 0.1-0.4MPa, and the concentration multiple is 5-20 times;
and in the third step, the rotating speed of the centrifugal system is 3000-8000 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391319.8A CN114084974B (en) | 2021-11-23 | 2021-11-23 | Glass grinding fluid treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391319.8A CN114084974B (en) | 2021-11-23 | 2021-11-23 | Glass grinding fluid treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114084974A CN114084974A (en) | 2022-02-25 |
| CN114084974B true CN114084974B (en) | 2023-07-14 |
Family
ID=80303315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111391319.8A Active CN114084974B (en) | 2021-11-23 | 2021-11-23 | Glass grinding fluid treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114084974B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086521A (en) * | 2010-12-10 | 2011-06-08 | 江苏久吾高科技股份有限公司 | Adsorption and ceramic membrane coupling process for removing sulfate ions from saline water |
| CN108658270A (en) * | 2017-11-27 | 2018-10-16 | 江苏久吾高科技股份有限公司 | A kind of processing method and processing device of titanium white production waste water |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926586A1 (en) * | 1989-08-11 | 1991-02-14 | Haecker Maschinen Gmbh Ing | Cleaning waste water from glass industry - using type I or II anion exchangers to remove arsenic and antimony fluoride complex ions |
| US8491680B2 (en) * | 2010-05-25 | 2013-07-23 | Veolia Water Solutions & Technologies North America, Inc. | Gasification process |
| WO2014042431A1 (en) * | 2012-09-14 | 2014-03-20 | 주식회사 엘지화학 | Method for regenerating spent ceria-containing polishing agent |
| CN108793585B (en) * | 2018-05-15 | 2021-03-23 | 安徽亿普特集团有限公司 | Wastewater treatment process |
| CN110577291B (en) * | 2018-06-11 | 2023-08-04 | 江苏久吾高科技股份有限公司 | Method and device for recycling glass cutting fluid |
| CN208617512U (en) * | 2018-06-11 | 2019-03-19 | 江苏久吾高科技股份有限公司 | A kind of reclamation set of glass cutting liquid |
| CN108640322A (en) * | 2018-07-23 | 2018-10-12 | 合肥学院 | A kind of ceramic membrane filter absorption processing system and its working method |
| CN111957215A (en) * | 2020-07-24 | 2020-11-20 | 南京工业大学 | Oil-water separation ceramic membrane, preparation method and oil-water separation device |
| CN213498578U (en) * | 2020-11-16 | 2021-06-22 | 云南驰宏国际锗业有限公司 | Device for efficiently separating germanium and polishing waste liquid |
-
2021
- 2021-11-23 CN CN202111391319.8A patent/CN114084974B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086521A (en) * | 2010-12-10 | 2011-06-08 | 江苏久吾高科技股份有限公司 | Adsorption and ceramic membrane coupling process for removing sulfate ions from saline water |
| CN108658270A (en) * | 2017-11-27 | 2018-10-16 | 江苏久吾高科技股份有限公司 | A kind of processing method and processing device of titanium white production waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114084974A (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104150721B (en) | A kind of recycling processing method for foodstuff pickling waste water | |
| CN105130087A (en) | Nano quantum dot adsorption and film separating system for removing heavy metal in water | |
| CN108975556B (en) | Method for purifying and recovering aged phosphoric acid polishing solution | |
| CN105084630A (en) | Oil refining catalyst wastewater zero-discharging treatment method | |
| CN108128939A (en) | A kind of method and device with Integrated Membrane Technology processing rare-earth smelting high ammonia-nitrogen wastewater | |
| CN108218096B (en) | System and method for treating mercury-containing high-salt wastewater from chloroethylene production by calcium carbide method | |
| CN106396221A (en) | Zero-discharge treatment method for complexing-type electroplating sewage | |
| CN104671498A (en) | Treatment method and device of wastewater containing superfine silicon powder | |
| CN114084974B (en) | Glass grinding fluid treatment method | |
| CN110002692A (en) | A kind of Zero-discharge treating process of industry cleaning link waste water | |
| CN108793568A (en) | A kind of stainless steel cleaning containing acid wastewater zero discharge waste water unit equipment | |
| CN109467242B (en) | Circuit board comprehensive wastewater treatment and copper recovery process capable of saving alkali consumption | |
| CN104291501B (en) | A kind of Integrated Membrane Technology processes the method for ammonium nitrate wastewater | |
| CN105482152B (en) | Silicon chip dicing waste mortar washes recovery system and method | |
| CN112108006A (en) | Preparation method of graphene oxide ceramic composite membrane and sewage recycling treatment method | |
| CN109097603B (en) | Process method for recovering germanium from germanium wafer deep processing waste acid | |
| CN115058607A (en) | Method for enriching germanium from germanium-containing solution | |
| CN110526513B (en) | Recycling treatment process for waste water from production of silicon materials in mixed crystal mode | |
| CN207659224U (en) | A kind of containing wastewater from catalyst integrated processing system | |
| JPS5895578A (en) | Processing method for magnetic fluid based on polluted dilute water | |
| CN111573945A (en) | System and method for resourceful treatment of heparin sodium wastewater | |
| CN111747595A (en) | Waste water purification process in incineration slag treatment process | |
| CN107417022A (en) | A kind of EDTA crystalline mother solutions waste water treatment and reclamation technology | |
| TW201518217A (en) | Method for recycling silicon-mud waste containing cutting oil | |
| CN114314925B (en) | Treatment method of germanium thinning process processing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |