CN105668690A - Filter element material of household water filter and preparation method thereof - Google Patents
Filter element material of household water filter and preparation method thereof Download PDFInfo
- Publication number
- CN105668690A CN105668690A CN201610254577.4A CN201610254577A CN105668690A CN 105668690 A CN105668690 A CN 105668690A CN 201610254577 A CN201610254577 A CN 201610254577A CN 105668690 A CN105668690 A CN 105668690A
- Authority
- CN
- China
- Prior art keywords
- parts
- filter element
- core
- household water
- element material
- 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
Links
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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
-
- 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
- C02F2101/103—Arsenic compounds
-
- 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
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a filter element material of a household water filter and a preparation method thereof. The filter element material is prepared from the following raw materials in parts by weight: 80 to 160 parts of sludge, 10 to 30 parts of peanut shell, 2 to 10 parts of pottery clay, 10 to 20 parts of magnesium silicate, 1 to 5 parts of cetyl trimethyl ammonium bromide, 1 to 8 parts of bentonite, 3 to 10 parts of zirconium fluoride, 2 to 8 parts of sea-foam stone powder, 35 to 50 parts of charcoal active powder, and 1 to 8 parts of calcium hydroxide. The raw materials are weighed and mixed according to parts by weight, and are subjected to anaerobic sintering at 700 to 1000 DEG C, so that the filter element material is obtained. The filter element material has the function of highly adsorbing and fixing trivalent arsenic and quinquevalent arsenic, and a filter element made of the filter element material can remove arsenic, lead, mercury and chromium ions under the condition that the hydraulic contact time is 90 seconds, with the removal rate greater than 80 percent. The filter element material further has a removal effect on residual chlorine and disinfecation byproducts in water, with the removal rate being capable of reaching 75 to 90 percent under the condition of 1.2 liter/minute and 90-second contact time.
Description
Technical field
The present invention relates to water purification technology field, specifically a kind of household water filter material for core and its preparation method.
Background technology
In recent years, China's water pollutions situation is day by day serious. Show according to survey data: there is the house district of 2.5 hundred million residents in China near emphasis blowdown enterprise and arterial traffic, and 2.8 hundred million residents use dangerous tap water. Along with the continuous lifting of health of people idea, the water quality requirement for tap water is more and more higher. But major part waterworks treatment process falls behind at present, and the tap water produced belongs to extremely low standard water; Even if part tap water up to standard also can cause secondary pollution and not up to standard in water transfer pipe network, high building water tower. When water quality health in municipal tap water cannot ensure, all kinds of household water filter arises at the historic moment.
Arsenic is one of element that toxicity is very strong, the main inorganic toxins removed in Ye Shi various countries drinking water standard. Nature water body exists mainly with trivalent and pentavalent state. But it is as a kind of metallic element, is not exist with the state of common cation, and mainly exist with arsenous anion and arsenate form. Even if the clearance of trivalent arsenic is only about 50% such as reverse osmosis membrane (RO) by the technology in modern times, the filtration needs to arsenic can not be met. In addition, the great heavy metal of arsenic and toxicity is filtered by filtering material, it is necessary to take into account the fixation problem after absorption.
Summary of the invention
It is an object of the invention to provide a kind of household water filter material for core and its preparation method, trivalent arsenic and pentavalent arsenic are had the fixing function of high absorption, to the chlorine residue gas in water and chemical disinfection byproducts, also has removal effect.
For achieving the above object, the present invention provides following technical scheme:
A kind of household water filter material for core, comprises according to the raw material of weight part: mud 80-160 part, Pericarppium arachidis hypogaeae 10-30 part, potter's clay 2-10 part, Magnesium Silicate q-agent 10-20 part, cetyl trimethylammonium bromide 1-5 part, wilkinite 1-8 part, Zirconium tetrafluoride 3-10 part, sepiolite powder 2-8 part, activity charcoal powder 35-50 part, calcium hydroxide 1-8 part.
As the scheme that the present invention is further: described household water filter material for core, comprises according to the raw material of weight part: mud 100-150 part, Pericarppium arachidis hypogaeae 15-24 part, potter's clay 4-8 part, Magnesium Silicate q-agent 12-18 part, cetyl trimethylammonium bromide 2-4 part, wilkinite 2-6 part, Zirconium tetrafluoride 5-8 part, sepiolite powder 4-6 part, activity charcoal powder 38-45 part, calcium hydroxide 2-6 part.
As the scheme that the present invention is further: described household water filter material for core, comprises according to the raw material of weight part: mud 120-140 part, Pericarppium arachidis hypogaeae 18-22 part, potter's clay 5-7 part, Magnesium Silicate q-agent 13-16 part, cetyl trimethylammonium bromide 2-4 part, wilkinite 3-5 part, Zirconium tetrafluoride 6-7 part, sepiolite powder 5-6 part, activity charcoal powder 40-43 part, calcium hydroxide 3-5 part.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 700 DEG C-1000 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
As the scheme that the present invention is further: raw material is taken mixing, at temperature 700 DEG C-900 DEG C, carry out anaerobic sintering.
Compared with prior art, the invention has the beneficial effects as follows:
Trivalent arsenic and pentavalent arsenic are had the fixing function of high absorption by the material for core of the present invention, and the filter core being made up of the present invention is when 90 seconds duration of contact of waterpower, it is possible to remove the plumbous mercury chromium ion clearance of arsenic and reach more than 80%. The material for core of the present invention, to the chlorine residue gas in water and chemical disinfection byproducts, also has removal effect. At 1.2 liters/min, the clearance of 75-90% when 90 seconds duration of contact, can be reached.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 80 parts, mud, Pericarppium arachidis hypogaeae 10 parts, 2 parts, potter's clay, Magnesium Silicate q-agent 10 parts, cetyl trimethylammonium bromide 1 part, wilkinite 1 part, Zirconium tetrafluoride 3 parts, sepiolite powder 2 parts, activity charcoal powder 35 parts, 1 part, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 700 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 80%. The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 75% when 90 seconds duration of contact.
Embodiment 2
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 160 parts, mud, Pericarppium arachidis hypogaeae 30 parts, 10 parts, potter's clay, Magnesium Silicate q-agent 20 parts, cetyl trimethylammonium bromide 5 parts, wilkinite 8 parts, Zirconium tetrafluoride 10 parts, sepiolite powder 8 parts, activity charcoal powder 50 parts, 8 parts, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 1000 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 81%.The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 77% when 90 seconds duration of contact.
Embodiment 3
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 100 parts, mud, Pericarppium arachidis hypogaeae 15 parts, 4 parts, potter's clay, Magnesium Silicate q-agent 12 parts, cetyl trimethylammonium bromide 2 parts, wilkinite 2 parts, Zirconium tetrafluoride 5 parts, sepiolite powder 4 parts, activity charcoal powder 38 parts, 2 parts, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 700 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 83%. The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 79% when 90 seconds duration of contact.
Embodiment 4
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 150 parts, mud, Pericarppium arachidis hypogaeae 24 parts, 8 parts, potter's clay, Magnesium Silicate q-agent 18 parts, cetyl trimethylammonium bromide 4 parts, wilkinite 6 parts, Zirconium tetrafluoride 8 parts, sepiolite powder 6 parts, activity charcoal powder 45 parts, 6 parts, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 900 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 84%. The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 85% when 90 seconds duration of contact.
Embodiment 5
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 120 parts, mud, Pericarppium arachidis hypogaeae 18 parts, 5 parts, potter's clay, Magnesium Silicate q-agent 13 parts, cetyl trimethylammonium bromide 2 parts, wilkinite 3 parts, Zirconium tetrafluoride 6 parts, sepiolite powder 5 parts, activity charcoal powder 40 parts, 3 parts, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 800 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 86%. The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 87% when 90 seconds duration of contact.
Embodiment 6
In the embodiment of the present invention, a kind of household water filter material for core, comprises according to the raw material of weight part: 140 parts, mud, Pericarppium arachidis hypogaeae 22 parts, 7 parts, potter's clay, Magnesium Silicate q-agent 16 parts, cetyl trimethylammonium bromide 4 parts, wilkinite 5 parts, Zirconium tetrafluoride 7 parts, sepiolite powder 6 parts, activity charcoal powder 43 parts, 5 parts, calcium hydroxide.
The preparation method of described household water filter material for core, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 900 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
The material for core of the embodiment of the present invention is when 90 seconds duration of contact of waterpower, it is possible to removes the plumbous mercury chromium ion clearance of arsenic and reaches 88%. The material for core of the present invention, at 1.2 liters/min, can reach the clearance of 90% when 90 seconds duration of contact.
To those skilled in the art, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit or the essential characteristic of the present invention, it is possible to realize the present invention in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and right and wrong are restrictive, the scope of the present invention is limited by claims instead of above-mentioned explanation, it is intended that all changes in the implication of the equivalent important document dropping on claim and scope included in the present invention.
In addition, it is to be understood that, although this specification sheets is described according to enforcement mode, but not each enforcement mode only comprises an independent technical scheme, this kind of narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment through appropriately combined, can also form other enforcement modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a household water filter material for core, it is characterized in that, comprise according to the raw material of weight part: mud 80-160 part, Pericarppium arachidis hypogaeae 10-30 part, potter's clay 2-10 part, Magnesium Silicate q-agent 10-20 part, cetyl trimethylammonium bromide 1-5 part, wilkinite 1-8 part, Zirconium tetrafluoride 3-10 part, sepiolite powder 2-8 part, activity charcoal powder 35-50 part, calcium hydroxide 1-8 part.
2. household water filter material for core according to claim 1, it is characterized in that, comprise according to the raw material of weight part: mud 100-150 part, Pericarppium arachidis hypogaeae 15-24 part, potter's clay 4-8 part, Magnesium Silicate q-agent 12-18 part, cetyl trimethylammonium bromide 2-4 part, wilkinite 2-6 part, Zirconium tetrafluoride 5-8 part, sepiolite powder 4-6 part, activity charcoal powder 38-45 part, calcium hydroxide 2-6 part.
3. household water filter material for core according to claim 2, it is characterized in that, comprise according to the raw material of weight part: mud 120-140 part, Pericarppium arachidis hypogaeae 18-22 part, potter's clay 5-7 part, Magnesium Silicate q-agent 13-16 part, cetyl trimethylammonium bromide 2-4 part, wilkinite 3-5 part, Zirconium tetrafluoride 6-7 part, sepiolite powder 5-6 part, activity charcoal powder 40-43 part, calcium hydroxide 3-5 part.
4. one kind as arbitrary in claim 1-3 as described in the preparation method of household water filter material for core, it is characterized in that, mud, Pericarppium arachidis hypogaeae, potter's clay, Magnesium Silicate q-agent, cetyl trimethylammonium bromide, wilkinite, Zirconium tetrafluoride, sepiolite powder, activity charcoal powder, calcium hydroxide are taken mixing by weight, at temperature 700 DEG C-1000 DEG C, carry out anaerobic sintering, obtain described household water filter material for core.
5. the preparation method of household water filter material for core according to claim 4, it is characterised in that, raw material is taken mixing, at temperature 700 DEG C-900 DEG C, carries out anaerobic sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254577.4A CN105668690A (en) | 2016-04-20 | 2016-04-20 | Filter element material of household water filter and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254577.4A CN105668690A (en) | 2016-04-20 | 2016-04-20 | Filter element material of household water filter and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105668690A true CN105668690A (en) | 2016-06-15 |
Family
ID=56215618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254577.4A Pending CN105668690A (en) | 2016-04-20 | 2016-04-20 | Filter element material of household water filter and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105668690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317094A (en) * | 2018-09-30 | 2019-02-12 | 江苏斯沃得环保科技有限公司 | A kind of water process carbon-point material and preparation method thereof |
| CN113023820A (en) * | 2021-03-25 | 2021-06-25 | 韩玉 | Low-cost and efficient municipal sewage treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065603A (en) * | 1992-03-07 | 1992-10-28 | 王力 | Activated carbon haydite compounded filter material and manufacture method |
| US5180491A (en) * | 1991-06-06 | 1993-01-19 | Ametek, Inc. | Apparatus for removal of iron from drinking water |
| CN103381321A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Air cleaning filter core and preparation method thereof |
| CN104645939A (en) * | 2015-02-28 | 2015-05-27 | 中国地质大学（武汉） | Composite sintered filter element based on geological material and preparation method of filter element |
| CN104888530A (en) * | 2015-05-20 | 2015-09-09 | 蚌埠德美过滤技术有限公司 | Active carbon air-conditioner filter core material and preparation method thereof |
-
2016
- 2016-04-20 CN CN201610254577.4A patent/CN105668690A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180491A (en) * | 1991-06-06 | 1993-01-19 | Ametek, Inc. | Apparatus for removal of iron from drinking water |
| CN1065603A (en) * | 1992-03-07 | 1992-10-28 | 王力 | Activated carbon haydite compounded filter material and manufacture method |
| CN103381321A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Air cleaning filter core and preparation method thereof |
| CN104645939A (en) * | 2015-02-28 | 2015-05-27 | 中国地质大学（武汉） | Composite sintered filter element based on geological material and preparation method of filter element |
| CN104888530A (en) * | 2015-05-20 | 2015-09-09 | 蚌埠德美过滤技术有限公司 | Active carbon air-conditioner filter core material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 贾铎: "《钻井液》", 30 September 1980, 石油工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317094A (en) * | 2018-09-30 | 2019-02-12 | 江苏斯沃得环保科技有限公司 | A kind of water process carbon-point material and preparation method thereof |
| CN113023820A (en) * | 2021-03-25 | 2021-06-25 | 韩玉 | Low-cost and efficient municipal sewage treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102807323B (en) | Method for recycling and reusing solid waste and glass prepared by using solid waste as raw material | |
| CN108083376B (en) | Sewage treatment agent and preparation method thereof | |
| WO2013078639A1 (en) | Coking wastewater treatment | |
| CN101544431A (en) | Process for treating mine water in high efficiency | |
| CN105923687A (en) | Nano-composite filter material capable of removing heavy metal out of water | |
| CN104556535A (en) | Sewage treatment method | |
| CN101343103A (en) | Emergency handling method for paroxysmal representative heavy metal pollution of water source of city | |
| CN103102026A (en) | Sudden raw water thallium pollution emergency treatment system and method | |
| CN105668690A (en) | Filter element material of household water filter and preparation method thereof | |
| Sorlini et al. | Survey on full-scale drinking water treatment plants for arsenic removal in Italy | |
| CN105016438A (en) | Sewage treatment agent | |
| CN204550231U (en) | A kind of micro-waste water water-purifying machine | |
| KR101668474B1 (en) | Porous filter composition for improving quality of water | |
| CN101596410A (en) | The cleaning method of moisture film method desalting system reverse osmosis membrane in a kind of iron and steel | |
| CN205115186U (en) | Drinking water purification device | |
| CN104710050A (en) | Portable drinking water purifying apparatus and use method thereof | |
| Visoottiviseth et al. | Technology for remediation and disposal of arsenic | |
| CN103834957A (en) | Separation purification method of high-Fe waste hydrochloric acid | |
| CN102992518A (en) | Treatment method of fluoride wastewater | |
| US20120234764A1 (en) | Method for treating boron-containing water and apparatus for treating boron-containing water | |
| CN105174546A (en) | Industrial wastewater treatment system | |
| CN103880148A (en) | High-chemical-activity filter material | |
| CN101935122B (en) | Method for purifying drilling wastewater in oil and gas field | |
| CN210595643U (en) | System for zero release of power plant's whole factory waste water and resource utilization | |
| KR101709621B1 (en) | Water quality improving apparatus by the porous filter composition for improving quality of water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
|
| RJ01 | Rejection of invention patent application after publication |