JPS6345639B2 - - Google Patents

Info

Publication number

JPS6345639B2

JPS6345639B2 JP59246122A JP24612284A JPS6345639B2 JP S6345639 B2 JPS6345639 B2 JP S6345639B2 JP 59246122 A JP59246122 A JP 59246122A JP 24612284 A JP24612284 A JP 24612284A JP S6345639 B2 JPS6345639 B2 JP S6345639B2

Authority

JP

Japan

Prior art keywords

sludge

tank

liquid

mixing

phosphorus

Prior art date

1984-11-22

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.)

Expired

Links

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• 239000010802 sludge Substances 0.000 claims description 130
• 239000007788 liquid Substances 0.000 claims description 74
• 238000002156 mixing Methods 0.000 claims description 36
• 238000000034 method Methods 0.000 claims description 26
• AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 15
• 235000011116 calcium hydroxide Nutrition 0.000 claims description 15
• 239000000920 calcium hydroxide Substances 0.000 claims description 15
• 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 15
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
• 238000004062 sedimentation Methods 0.000 claims description 13
• 239000007787 solid Substances 0.000 claims description 8
• 229910052742 iron Inorganic materials 0.000 claims description 7
• 239000010815 organic waste Substances 0.000 claims description 6
• 238000005273 aeration Methods 0.000 claims description 5
• -1 iron salt compound Chemical class 0.000 claims description 5
• 208000005156 Dehydration Diseases 0.000 claims description 4
• QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
• 230000018044 dehydration Effects 0.000 claims description 4
• 238000006297 dehydration reaction Methods 0.000 claims description 4
• 239000001301 oxygen Substances 0.000 claims description 4
• 229910052760 oxygen Inorganic materials 0.000 claims description 4
• 239000000203 mixture Substances 0.000 claims description 3
• GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
• IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 claims description 2
• 229910017604 nitric acid Inorganic materials 0.000 claims description 2
• OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 45
• 229910052698 phosphorus Inorganic materials 0.000 description 45
• 239000011574 phosphorus Substances 0.000 description 45
• 230000008719 thickening Effects 0.000 description 13
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
• 239000006228 supernatant Substances 0.000 description 9
• XRWSZZJLZRKHHD-WVWIJVSJSA-N asunaprevir Chemical compound O=C([C@@H]1C[C@H](CN1C(=O)[C@@H](NC(=O)OC(C)(C)C)C(C)(C)C)OC1=NC=C(C2=CC=C(Cl)C=C21)OC)N[C@]1(C(=O)NS(=O)(=O)C2CC2)C[C@H]1C=C XRWSZZJLZRKHHD-WVWIJVSJSA-N 0.000 description 7
• 229940125961 compound 24 Drugs 0.000 description 7
• 150000002505 iron Chemical class 0.000 description 7
• 239000010865 sewage Substances 0.000 description 6
• 239000000243 solution Substances 0.000 description 6
• 229910021578 Iron(III) chloride Inorganic materials 0.000 description 5
• RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 5
• 239000005416 organic matter Substances 0.000 description 5
• 230000000052 comparative effect Effects 0.000 description 3
• 238000010586 diagram Methods 0.000 description 3
• 238000000926 separation method Methods 0.000 description 3
• 239000002351 wastewater Substances 0.000 description 3
• IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
• 238000005276 aerator Methods 0.000 description 2
• 239000012141 concentrate Substances 0.000 description 2
• 230000005484 gravity Effects 0.000 description 2
• 238000002347 injection Methods 0.000 description 2
• 239000007924 injection Substances 0.000 description 2
• 229910002651 NO3 Inorganic materials 0.000 description 1
• 238000006243 chemical reaction Methods 0.000 description 1
• 238000007796 conventional method Methods 0.000 description 1
• 238000001035 drying Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 239000003344 environmental pollutant Substances 0.000 description 1
• 238000002474 experimental method Methods 0.000 description 1
• 229960002089 ferrous chloride Drugs 0.000 description 1
• 235000003891 ferrous sulphate Nutrition 0.000 description 1
• 239000011790 ferrous sulphate Substances 0.000 description 1
• 239000007789 gas Substances 0.000 description 1
• 239000010842 industrial wastewater Substances 0.000 description 1
• NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
• BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
• 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
• 238000011068 loading method Methods 0.000 description 1
• 229910052757 nitrogen Inorganic materials 0.000 description 1
• 230000003647 oxidation Effects 0.000 description 1
• 238000007254 oxidation reaction Methods 0.000 description 1
• 238000006864 oxidative decomposition reaction Methods 0.000 description 1
• 150000003018 phosphorus compounds Chemical class 0.000 description 1
• 231100000719 pollutant Toxicity 0.000 description 1
• 238000012545 processing Methods 0.000 description 1
• 238000003756 stirring Methods 0.000 description 1
• 238000012546 transfer Methods 0.000 description 1