Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Arsenic-containing wastewater filling method treatment method
The invention provides an arsenic-containing wastewater filling method treatment method, and belongs to the technical field of wastewater treatment.The arsenic-containing solid waste obtained through wastewater treatment is filled into a mine to achieve safe disposal, and the method specifically comprises the following steps that an oxidizing agent is added into arsenic-containing wastewater, a neutralizer is added to adjust the pH value, and then the arsenic-containing wastewater is treated; then adding a certain amount of ferric sulfate, carrying out stirring reaction at a set temperature to finally form stable scorodite (the dissolution index of As after toxicity leaching reaches the emission standard), and then stirring and mixing 4-7% of scorodite, 7-9% of a gel material, 50-54% of tailings and 34-37% of water in percentage by mass to prepare the underground filling material. The filling material meets the requirements of fluidity and compressive strength of a filling body, and the toxicity leaching result meets the hazardous waste identification standard-leaching toxicity identification regulation. According to the method, the problems of instability, mass accumulation and the like of solid wastes in the arsenic-containing wastewater treatment process are solved, and safe treatment of the arsenic-containing solid wastes is realized.
本发明提供一种含砷废水充填法处理方法，属于废水处理技术领域，通过将废水处理得到的含砷固废填充到矿井中，实现安全处置，具体包括以下步骤：向含砷废水中加入氧化剂，并加入中和剂调节pH值，然后加入一定量的硫酸铁在设定温度下进行搅拌反应，最终形成稳定的臭葱石(毒性浸出后As的溶解指标达到排放标准)，随后按质量百分比将臭葱石4％‑7％、凝胶材料7％‑9％、尾砂50％‑54％、水34％‑37％搅拌混合制成井下充填材料，该充填材料满足充填体流动性及抗压强度需要且毒性浸出结果符合危险废物鉴别标准‑浸出毒性鉴别规定。本发明解决了含砷废水处理过程中固废物的不稳定、大量堆积等问题，实现了含砷固废的安全处置。
Arsenic-containing wastewater filling method treatment method
The invention provides an arsenic-containing wastewater filling method treatment method, and belongs to the technical field of wastewater treatment.The arsenic-containing solid waste obtained through wastewater treatment is filled into a mine to achieve safe disposal, and the method specifically comprises the following steps that an oxidizing agent is added into arsenic-containing wastewater, a neutralizer is added to adjust the pH value, and then the arsenic-containing wastewater is treated; then adding a certain amount of ferric sulfate, carrying out stirring reaction at a set temperature to finally form stable scorodite (the dissolution index of As after toxicity leaching reaches the emission standard), and then stirring and mixing 4-7% of scorodite, 7-9% of a gel material, 50-54% of tailings and 34-37% of water in percentage by mass to prepare the underground filling material. The filling material meets the requirements of fluidity and compressive strength of a filling body, and the toxicity leaching result meets the hazardous waste identification standard-leaching toxicity identification regulation. According to the method, the problems of instability, mass accumulation and the like of solid wastes in the arsenic-containing wastewater treatment process are solved, and safe treatment of the arsenic-containing solid wastes is realized.
本发明提供一种含砷废水充填法处理方法，属于废水处理技术领域，通过将废水处理得到的含砷固废填充到矿井中，实现安全处置，具体包括以下步骤：向含砷废水中加入氧化剂，并加入中和剂调节pH值，然后加入一定量的硫酸铁在设定温度下进行搅拌反应，最终形成稳定的臭葱石(毒性浸出后As的溶解指标达到排放标准)，随后按质量百分比将臭葱石4％‑7％、凝胶材料7％‑9％、尾砂50％‑54％、水34％‑37％搅拌混合制成井下充填材料，该充填材料满足充填体流动性及抗压强度需要且毒性浸出结果符合危险废物鉴别标准‑浸出毒性鉴别规定。本发明解决了含砷废水处理过程中固废物的不稳定、大量堆积等问题，实现了含砷固废的安全处置。
Arsenic-containing wastewater filling method treatment method
一种含砷废水充填法处理方法
JIN ZHENAN (Autor:in) / ZHENG TIANHAO (Autor:in)
07.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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