JPS5771697A - Method for treatment of phosphate-containing sludge - Google Patents
Method for treatment of phosphate-containing sludgeInfo
- Publication number
- JPS5771697A JPS5771697A JP14726280A JP14726280A JPS5771697A JP S5771697 A JPS5771697 A JP S5771697A JP 14726280 A JP14726280 A JP 14726280A JP 14726280 A JP14726280 A JP 14726280A JP S5771697 A JPS5771697 A JP S5771697A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- phosphate
- phosphates
- inorganic salts
- exchange resin
- 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
- 239000010802 sludge Substances 0.000 title abstract 9
- 229910019142 PO4 Inorganic materials 0.000 title abstract 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title abstract 6
- 239000010452 phosphate Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 235000021317 phosphate Nutrition 0.000 abstract 5
- 239000002253 acid Substances 0.000 abstract 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 3
- 150000003839 salts Chemical class 0.000 abstract 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000003456 ion exchange resin Substances 0.000 abstract 2
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 150000001455 metallic ions Chemical class 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Sorption (AREA)
Abstract
PURPOSE: To recover phosphates and inorganic salts efficiently by a method wherein a phosphate-containing sludge formed by flocculation is dissolved in a mineral acid and then it is contacted to a specified chelating ion exchange resin.
CONSTITUTION: The phosphate-containing sludge is treated with a mineral acid to dissolve the phosphates and inorganic salts contained in the sludge. The sludge thus dissolved is then passed through a column packed with a chelating ion exchange resin on which are adsorbed metallic ions capable of forming a complex with phosphate ions. When the adsorption of the phosphate ions is saturated, the passing of the sludge through the column is stopped, and phosphoric acid can be completely recovered by using an aqueous alkali solution as an eluate. Then, the capability of the exchange resin to adsorb phosphate ions is easily regenerated by treating the resin with a diluted acid. On the other hand, the sludge solution deprived of the phosphates contains the inorganic salts, which can be reused as a flocculant. The sludge residue becomes a harmless sludge consisting mainly of organic materials.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14726280A JPS5771697A (en) | 1980-10-20 | 1980-10-20 | Method for treatment of phosphate-containing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14726280A JPS5771697A (en) | 1980-10-20 | 1980-10-20 | Method for treatment of phosphate-containing sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771697A true JPS5771697A (en) | 1982-05-04 |
Family
ID=15426249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14726280A Pending JPS5771697A (en) | 1980-10-20 | 1980-10-20 | Method for treatment of phosphate-containing sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771697A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008190127A (en) * | 2007-01-31 | 2008-08-21 | Shin Nikkei Co Ltd | Locking device of gate door |
| JP2009056457A (en) * | 2007-08-03 | 2009-03-19 | Toshiba Corp | Phosphorus compound adsorbent, phosphorus compound adsorption system, and method of using phosphorous compound adsorbent |
| JP2010284607A (en) * | 2009-06-12 | 2010-12-24 | Toshiba Corp | Phosphorus adsorbent and phosphorus recovery system |
| US8258076B2 (en) | 2007-08-03 | 2012-09-04 | Kabushiki Kaisha Toshiba | Phosphorus compound adsorbent, phosphorus compound adsorption system, and method of using phosphorus compound adsorbent |
| CN106746391A (en) * | 2016-11-16 | 2017-05-31 | 环境保护部南京环境科学研究所 | A kind of phosphatization recycling sludge method of disposal |
-
1980
- 1980-10-20 JP JP14726280A patent/JPS5771697A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008190127A (en) * | 2007-01-31 | 2008-08-21 | Shin Nikkei Co Ltd | Locking device of gate door |
| JP2009056457A (en) * | 2007-08-03 | 2009-03-19 | Toshiba Corp | Phosphorus compound adsorbent, phosphorus compound adsorption system, and method of using phosphorous compound adsorbent |
| US8258076B2 (en) | 2007-08-03 | 2012-09-04 | Kabushiki Kaisha Toshiba | Phosphorus compound adsorbent, phosphorus compound adsorption system, and method of using phosphorus compound adsorbent |
| JP2010284607A (en) * | 2009-06-12 | 2010-12-24 | Toshiba Corp | Phosphorus adsorbent and phosphorus recovery system |
| CN106746391A (en) * | 2016-11-16 | 2017-05-31 | 环境保护部南京环境科学研究所 | A kind of phosphatization recycling sludge method of disposal |
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