CN1359858A - Process for purifying floated algin and waste Ca solution in algin factory - Google Patents
Process for purifying floated algin and waste Ca solution in algin factory Download PDFInfo
- Publication number
- CN1359858A CN1359858A CN 01117598 CN01117598A CN1359858A CN 1359858 A CN1359858 A CN 1359858A CN 01117598 CN01117598 CN 01117598 CN 01117598 A CN01117598 A CN 01117598A CN 1359858 A CN1359858 A CN 1359858A
- Authority
- CN
- China
- Prior art keywords
- algin
- waste
- factory
- water
- purifying
- 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.)
- Granted
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A process for removing the floating dregs and Ca-containing sewage from the sewage of algin factory includes mixing said sewage, flocculated Ca-containing sewage and decalcified sewage, reaction, and filtering.
Description
The present invention relates to a kind of treatment process of waste water and dregs, particularly relate to a kind of floating residue of algin factory and method of waste Ca water of purifying.
At present in algin factory, sea-tangle is added yellow soda ash digestion under 70 ℃, make that water-insoluble alginate further is converted into water miscible sodium alginate in the sea-tangle, after the digestion, obtain heavy-gravity sodium alginate mud shape thing, wherein contain impurity such as a large amount of insoluble sludges, the normal technologies such as diluted settlement or floating, filtration that adopt are told it in the production.But the postdigestive glue thickness of sea-tangle, the concentration height, directly therefrom remove very difficulty of impurity such as residue, usually with 100-150 water doubly towards rare, the glue after rare, mix gas by machinery, leave standstill impurity such as back glue and residue and separate, proportion is little be floated to above, below heavy the sinking to, the waste water (pH=9-10) that contains floating residue is discharged, thus severe contamination environment.In the production of algin, the glue after the filtration generally adopts CaCl
2As flocculation agent, make sodium alginate change into calcium alginate, from solution, separate, reach the purified purpose, the CaCl that a large amount of waste Ca waters after the flocculation contain
2HCI is also drained together with waste water, also environment is caused huge pollution.Aborning calcium alginate is used the hydrochloric acid decalcification in addition, be transformed into alginic acid, the decalcification of general employing secondary, the PH of the waste water after the decalcification for the first time is approximately 3, the PH of the waste water after the decalcification for the second time is 1.5-2, during plant produced, the waste water after the primary decalcification is discharged, and also environment has been caused huge pollution.Above-mentioned three kinds of source of pollution have constituted huge harm to ecotope, thus algin factory to solve the contaminated wastewater problem of environment imperative.
The purpose of this invention is to provide a kind of floating residue of algin factory and method of waste Ca water of purifying, it can solve the problem of above-mentioned environmental pollution.
Waste Ca water after a kind of floating residue of algin factory and the method for waste Ca water of purifying, the waste water that it is characterized in that algin factory is contained floating residue and flocculation and/or decalcification waste water mix and react, and remove by filter the flocculation mixture of generation.
Method of the present invention can make the slag and effluent of algin factory discharging obtain administering, and meets environmental protection requirement, the treatment of wastes with processes of wastes against one another, and waste residue is fully used.
Below by embodiment the present invention is described.
Get 1 ton of the floating residue liquid of algin factory, its PH is about 9.5, major ingredient have 0.1-4% algin, do not digest sea-tangle, Mierocrystalline cellulose, other polysaccharide and inorganic salt or the like completely, 0.4 ton of waste Ca water after the adding flocculation, generate flocculation mixtures such as calcium alginate, with its press dewatering, obtain the calcium alginate flocculation mixture that water content is about 60-90%.Do not had residue in Pai Fang the waste water after treatment, its COD is that 150mg/ liter, BOD are that 60mg/ liter, PH are 6-9, meets environmental protection requirement.
Waste Ca water in the present embodiment after the flocculation can be used decalcification water instead or use this two kinds of waste water simultaneously, as long as the equivalents of the algin in the waste water of the equivalents of its water content calcium and floating residue is identical.
Claims (1)
1, waste Ca water after a kind of floating residue of algin factory and the method for waste Ca water of purifying, the waste water that it is characterized in that algin factory is contained floating residue and flocculation and/or decalcification waste water mix and react, and remove by filter the flocculation mixture of generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01117598 CN1125785C (en) | 2000-12-19 | 2001-04-25 | Process for purifying floated algin and waste Ca solution in algin factory |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129425 | 2000-12-19 | ||
| CN00129425.3 | 2000-12-19 | ||
| CN 01117598 CN1125785C (en) | 2000-12-19 | 2001-04-25 | Process for purifying floated algin and waste Ca solution in algin factory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359858A true CN1359858A (en) | 2002-07-24 |
| CN1125785C CN1125785C (en) | 2003-10-29 |
Family
ID=25739597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01117598 Expired - Fee Related CN1125785C (en) | 2000-12-19 | 2001-04-25 | Process for purifying floated algin and waste Ca solution in algin factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1125785C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870528A (en) * | 2010-05-27 | 2010-10-27 | 中国水产科学研究院黄海水产研究所 | Dibasic precipitation method for treating calcium-containing wastewater in phaeophyceae industry |
| CN102745841A (en) * | 2012-05-25 | 2012-10-24 | 中国水产科学研究院黄海水产研究所 | Novel brown algae chemical waste calcium water recycling process |
| CN103058429A (en) * | 2013-02-04 | 2013-04-24 | 中国水产科学研究院黄海水产研究所 | New process for comprehensively utilizing brown alga chemical calcium wastewater |
-
2001
- 2001-04-25 CN CN 01117598 patent/CN1125785C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870528A (en) * | 2010-05-27 | 2010-10-27 | 中国水产科学研究院黄海水产研究所 | Dibasic precipitation method for treating calcium-containing wastewater in phaeophyceae industry |
| CN102745841A (en) * | 2012-05-25 | 2012-10-24 | 中国水产科学研究院黄海水产研究所 | Novel brown algae chemical waste calcium water recycling process |
| CN102745841B (en) * | 2012-05-25 | 2013-10-09 | 中国水产科学研究院黄海水产研究所 | Novel brown algae chemical waste calcium water recycling process |
| CN103058429A (en) * | 2013-02-04 | 2013-04-24 | 中国水产科学研究院黄海水产研究所 | New process for comprehensively utilizing brown alga chemical calcium wastewater |
| CN103058429B (en) * | 2013-02-04 | 2014-05-14 | 中国水产科学研究院黄海水产研究所 | New process for comprehensively utilizing brown alga chemical calcium wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125785C (en) | 2003-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4515273B2 (en) | Condensation separation purification agent and purification method of polluted waste water | |
| CN101665279B (en) | Preparation method of flocculating agent for removing phosphor with low concentration in water | |
| CN105271611A (en) | Sewage interception chemical fertilizer plant | |
| CN1125785C (en) | Process for purifying floated algin and waste Ca solution in algin factory | |
| CN110342750A (en) | Sewage treatment device and process for synchronously realizing sludge in-situ reduction and nitrogen and phosphorus removal | |
| CN109775779A (en) | A kind of Water Treatment agent | |
| CN105000685B (en) | Chemical water treatment agent | |
| KR20200120481A (en) | Loess fermentation strain composition for water purification and water purification method using the same | |
| KR100318661B1 (en) | Wastewater treatment agent and its treatment method | |
| CN117509937A (en) | Method for removing fluorine in high-fluorine-content wastewater | |
| CN107324416A (en) | Water Treatment agent | |
| JP2006247630A (en) | Waste water treating hydrophobization solid-liquid separating medium | |
| JP2002177966A (en) | Dephosphorizing agent and dephosphorization method as well as dewatering treatment method for sludge | |
| CN114133097A (en) | Treatment process of pharmaceutical intermediate production wastewater | |
| JP5116030B2 (en) | Boiler ash treatment agent | |
| JP2002079004A (en) | Aggregation method | |
| JP2004008903A (en) | Inorganic mud transmutation, flocculation and purification treating agent | |
| CN1098817C (en) | Method for removing chlorine ion in salt and alkali sludges | |
| JP2004008903A5 (en) | ||
| CN115159655B (en) | Method for removing organic pollutants in water by strengthening ferrate through calcium source and clay particles | |
| CN1295034A (en) | Recovery and treatment method of waste water containing high-concentration benzene dicarboxylic acid | |
| CN217459127U (en) | Strong brine waste water high-efficient nitrogen and phosphorus removal processing system | |
| JPS6157300A (en) | Treatment of sludge of excretion purification tank | |
| JP2004344765A (en) | Water purifying material and its manufacturing method | |
| KR20000006600A (en) | Preparing method for wastewater purifying agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |