JP2015182246A5 - - Google Patents
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- Publication number
- JP2015182246A5 JP2015182246A5 JP2014058521A JP2014058521A JP2015182246A5 JP 2015182246 A5 JP2015182246 A5 JP 2015182246A5 JP 2014058521 A JP2014058521 A JP 2014058521A JP 2014058521 A JP2014058521 A JP 2014058521A JP 2015182246 A5 JP2015182246 A5 JP 2015182246A5
- Authority
- JP
- Japan
- Prior art keywords
- calcium compound
- nutrient
- superabsorbent polymer
- absorbent article
- urine
- 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
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- 150000001674 calcium compounds Chemical class 0.000 claims 14
- 235000015097 nutrients Nutrition 0.000 claims 13
- 229920000247 Superabsorbent polymer Polymers 0.000 claims 9
- 230000002745 absorbent Effects 0.000 claims 7
- 239000002250 absorbent Substances 0.000 claims 7
- 210000002700 Urine Anatomy 0.000 claims 6
- 239000007788 liquid Substances 0.000 claims 6
- 150000003839 salts Chemical class 0.000 claims 6
- 239000011780 sodium chloride Substances 0.000 claims 6
- 238000011084 recovery Methods 0.000 claims 5
- 238000000926 separation method Methods 0.000 claims 5
- 239000007864 aqueous solution Substances 0.000 claims 4
- 239000000470 constituent Substances 0.000 claims 4
- 239000000463 material Substances 0.000 claims 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 4
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 4
- 229910052698 phosphorus Inorganic materials 0.000 claims 4
- 239000011574 phosphorus Substances 0.000 claims 4
- 239000007787 solid Substances 0.000 claims 4
- 230000002779 inactivation Effects 0.000 claims 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims 1
- 239000001110 calcium chloride Substances 0.000 claims 1
- 229910001628 calcium chloride Inorganic materials 0.000 claims 1
- 239000000292 calcium oxide Substances 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000005712 crystallization Effects 0.000 claims 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims 1
- 230000000415 inactivating Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- MXZRMHIULZDAKC-UHFFFAOYSA-L magnesium;azane;hydrogen phosphate Chemical group [NH4+].[Mg+2].[O-]P([O-])([O-])=O MXZRMHIULZDAKC-UHFFFAOYSA-L 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000004449 solid propellant Substances 0.000 claims 1
- 229910052567 struvite Inorganic materials 0.000 claims 1
Claims (8)
前記使用済み吸収性物品又は尿を含む高吸水性ポリマーをカルシウム化合物含有水溶液に浸漬して、前記高吸水性ポリマーを不活化する不活化工程、
不活化工程を経た後の使用済み吸収性物品又は尿を含む高吸水性ポリマーと、カルシウム化合物含有水溶液との混合物を、吸収性物品の構成素材又は高吸水性ポリマーを含む固体と、カルシウム化合物および栄養塩を含む液体とに分離する分離工程、および
カルシウム化合物および栄養塩を含む液体から栄養塩を回収する栄養塩回収工程、
を含む方法。 A used absorbent article containing a superabsorbent polymer containing urine, or a method of recovering urine-derived nutrient salts from a superabsorbent polymer containing urine,
Inactivation step by immersing the calcium compound containing aqueous solution superabsorbent polymer containing the used absorbent article or urine, to inactivate the superabsorbent polymer,
A mixture of the used absorbent article or the superabsorbent polymer containing urine after passing through the inactivation step and the calcium compound-containing aqueous solution , the constituent material of the absorbent article or the solid containing the superabsorbent polymer , the calcium compound and A separation step of separating into a nutrient-containing liquid, and a nutrient recovery step of recovering the nutrient from the liquid containing the calcium compound and the nutrient ;
Including methods.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014058521A JP6279372B2 (en) | 2014-03-20 | 2014-03-20 | Method for recovering urine-derived nutrients from used paper diapers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014058521A JP6279372B2 (en) | 2014-03-20 | 2014-03-20 | Method for recovering urine-derived nutrients from used paper diapers |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018005902A Division JP6462910B2 (en) | 2018-01-17 | 2018-01-17 | Method for recovering urine-derived nutrients from used paper diapers |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2015182246A JP2015182246A (en) | 2015-10-22 |
JP2015182246A5 true JP2015182246A5 (en) | 2017-04-20 |
JP6279372B2 JP6279372B2 (en) | 2018-02-14 |
Family
ID=54349373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014058521A Active JP6279372B2 (en) | 2014-03-20 | 2014-03-20 | Method for recovering urine-derived nutrients from used paper diapers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6279372B2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6505045B2 (en) * | 2016-04-11 | 2019-04-24 | ユニ・チャーム株式会社 | Method of recovering pulp fibers from used absorbent articles |
JP2018089785A (en) * | 2016-11-30 | 2018-06-14 | ユニ・チャーム株式会社 | Method for recovering nutrient salt derived from urine from used paper diaper or the like |
JP6698506B2 (en) * | 2016-12-02 | 2020-05-27 | ユニ・チャーム株式会社 | How to recycle used absorbent articles |
JP6667575B2 (en) | 2017-11-01 | 2020-03-18 | ユニ・チャーム株式会社 | Organic acid recovery method and recycled pulp manufacturing method |
JP6580116B2 (en) | 2017-12-20 | 2019-09-25 | ユニ・チャーム株式会社 | Method for producing recycled pulp fiber |
JP6721249B2 (en) * | 2017-12-27 | 2020-07-08 | 株式会社サムズ | Liquid fertilizer manufacturing method |
JP6462910B2 (en) * | 2018-01-17 | 2019-01-30 | ユニ・チャーム株式会社 | Method for recovering urine-derived nutrients from used paper diapers |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3452439B2 (en) * | 1996-01-26 | 2003-09-29 | 株式会社クボタ | Recovery and recycling of useful substances from organic waste |
JP4550192B2 (en) * | 1999-11-22 | 2010-09-22 | 震 古賀 | Body fluid separation and measurement method |
JP2001181075A (en) * | 1999-12-21 | 2001-07-03 | Sato Masako | Method for producing soil modifier, the resultant soil modifier and diaper treatment agent |
JP4693128B2 (en) * | 2007-03-13 | 2011-06-01 | 国立大学法人北海道大学 | Phosphorus recovery method and phosphorus recovery system |
-
2014
- 2014-03-20 JP JP2014058521A patent/JP6279372B2/en active Active
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