A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CHLORINE-CONTAINING WASTE TREATMENT METHOD
To provide a chlorine-containing waste treatment method in which a chlorine component of chlorine-containing waste is flocculated and consolidated, and the chlorine component is efficiently removed, thereby improving work efficiency thereafter.SOLUTION: A chlorine-containing waste treatment method includes: a water washing step where chlorine containing waste and water are mixed and a waste-containing eluate is produced by eluting chlorine and a heavy metal in the waste; a solid-liquid separation step to separate desalination waste where the chlorine and the heavy metal in the waste are desalinated from a chlorine-containing eluate where the chlorine and the heavy metal are eluted; a flocculation step to add a chelating agent and a nonionic polymer flocculant to the chlorine-containing eluate and to produce aggregates by flocculating the chlorine and the heavy metal in the chlorine-containing eluate; and a removal step to remove the aggregates by filtration.SELECTED DRAWING: Figure 1
【課題】塩素含有廃棄物の塩素成分を凝集及び圧密し、塩素成分を効率よく除去することで、その後の作業効率を向上させることができる塩素含有廃棄物処理方法を提供する。【解決手段】塩素を含有する廃棄物と水とを混合し、前記廃棄物中の塩素及び重金属を溶出させて廃棄物含有溶出液にする水洗工程と、前記廃棄物中の前記塩素及び前記重金属が脱塩された脱塩廃棄物と前記塩素及び前記重金属が溶出した塩素含有溶出液とを分離する固液分離工程と、前記塩素含有溶出液にキレート剤及びノニオン系高分子凝集剤を添加し、前記塩素含有溶出液中で前記塩素及び前記重金属を凝集させて凝集物にする凝集工程と、前記凝集物を濾過して除去する除去工程とを含む塩素含有廃棄物処理方法。【選択図】図１
CHLORINE-CONTAINING WASTE TREATMENT METHOD
To provide a chlorine-containing waste treatment method in which a chlorine component of chlorine-containing waste is flocculated and consolidated, and the chlorine component is efficiently removed, thereby improving work efficiency thereafter.SOLUTION: A chlorine-containing waste treatment method includes: a water washing step where chlorine containing waste and water are mixed and a waste-containing eluate is produced by eluting chlorine and a heavy metal in the waste; a solid-liquid separation step to separate desalination waste where the chlorine and the heavy metal in the waste are desalinated from a chlorine-containing eluate where the chlorine and the heavy metal are eluted; a flocculation step to add a chelating agent and a nonionic polymer flocculant to the chlorine-containing eluate and to produce aggregates by flocculating the chlorine and the heavy metal in the chlorine-containing eluate; and a removal step to remove the aggregates by filtration.SELECTED DRAWING: Figure 1
【課題】塩素含有廃棄物の塩素成分を凝集及び圧密し、塩素成分を効率よく除去することで、その後の作業効率を向上させることができる塩素含有廃棄物処理方法を提供する。【解決手段】塩素を含有する廃棄物と水とを混合し、前記廃棄物中の塩素及び重金属を溶出させて廃棄物含有溶出液にする水洗工程と、前記廃棄物中の前記塩素及び前記重金属が脱塩された脱塩廃棄物と前記塩素及び前記重金属が溶出した塩素含有溶出液とを分離する固液分離工程と、前記塩素含有溶出液にキレート剤及びノニオン系高分子凝集剤を添加し、前記塩素含有溶出液中で前記塩素及び前記重金属を凝集させて凝集物にする凝集工程と、前記凝集物を濾過して除去する除去工程とを含む塩素含有廃棄物処理方法。【選択図】図１
CHLORINE-CONTAINING WASTE TREATMENT METHOD
塩素含有廃棄物処理方法
HAMAHIRA SHINICHI (author) / MORIKAWA TAKUKO (author)
2019-01-24
Patent
Electronic Resource
Japanese
| European Patent Office | 2020