A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Resource utilization method of fluorine-containing sludge in photovoltaic wastewater
The invention relates to the technical field of wastewater sludge reutilization, in particular to a photovoltaic wastewater fluorine-containing sludge resource utilization method, which comprises the following steps: S1, adding calcium hydroxide into the sludge of photovoltaic wastewater to obtain pretreated sludge; s2, pulping the pretreated sludge, mixing with a trapping agent, a foaming agent and a conditioning agent, and carrying out flotation treatment; s3, mixing the calcium fluoride sludge obtained by flotation with a strong acid solution, and neutralizing with alkali liquor to obtain the calcium fluoride sludge; and S4, grinding the concrete slag, fully mixing the ground concrete slag with calcium fluoride sludge, a high-molecular polymer, cement, a water reducing agent, nano titanium dioxide, the hollow nano cage fiber material and water, and processing to obtain the building material brick. According to the invention, after the sludge of the photovoltaic wastewater is treated, the treated sludge and various materials are subjected to blending extrusion forming, the environment-friendly building material brick can be obtained, and calcium fluoride in the building material brick is not easy to lose, so that secondary pollution to the environment is avoided, and the problem of treatment of the sludge of the photovoltaic wastewater can be well solved.
本发明涉及废水污泥再利用技术领域，具体涉及一种光伏废水含氟污泥的资源化利用方法，S1向光伏废水的污泥中加入氢氧化钙，得到预处理污泥；S2将预处理污泥制浆，与捕获剂、发泡剂和调节剂混合进行浮选处理；S3浮选获得的氟化钙污泥与强酸性溶液混合，经碱液中和，得到氟化钙污泥；S4将混凝土渣研磨后与氟化钙污泥、高分子聚合物、水泥、减水剂、纳米二氧化钛、中空纳米笼纤维材料、水充分混合，经加工得到建材砖。本发明中，通过对光伏废水的污泥进行处理后，与各种材料进行共混挤压成型，可以得到环保型的建材砖，并且建材砖中的氟化钙不易流失，因此不会对环境造成二次污染，从而可以很好的解决光伏废水污泥的处置问题。
Resource utilization method of fluorine-containing sludge in photovoltaic wastewater
The invention relates to the technical field of wastewater sludge reutilization, in particular to a photovoltaic wastewater fluorine-containing sludge resource utilization method, which comprises the following steps: S1, adding calcium hydroxide into the sludge of photovoltaic wastewater to obtain pretreated sludge; s2, pulping the pretreated sludge, mixing with a trapping agent, a foaming agent and a conditioning agent, and carrying out flotation treatment; s3, mixing the calcium fluoride sludge obtained by flotation with a strong acid solution, and neutralizing with alkali liquor to obtain the calcium fluoride sludge; and S4, grinding the concrete slag, fully mixing the ground concrete slag with calcium fluoride sludge, a high-molecular polymer, cement, a water reducing agent, nano titanium dioxide, the hollow nano cage fiber material and water, and processing to obtain the building material brick. According to the invention, after the sludge of the photovoltaic wastewater is treated, the treated sludge and various materials are subjected to blending extrusion forming, the environment-friendly building material brick can be obtained, and calcium fluoride in the building material brick is not easy to lose, so that secondary pollution to the environment is avoided, and the problem of treatment of the sludge of the photovoltaic wastewater can be well solved.
本发明涉及废水污泥再利用技术领域，具体涉及一种光伏废水含氟污泥的资源化利用方法，S1向光伏废水的污泥中加入氢氧化钙，得到预处理污泥；S2将预处理污泥制浆，与捕获剂、发泡剂和调节剂混合进行浮选处理；S3浮选获得的氟化钙污泥与强酸性溶液混合，经碱液中和，得到氟化钙污泥；S4将混凝土渣研磨后与氟化钙污泥、高分子聚合物、水泥、减水剂、纳米二氧化钛、中空纳米笼纤维材料、水充分混合，经加工得到建材砖。本发明中，通过对光伏废水的污泥进行处理后，与各种材料进行共混挤压成型，可以得到环保型的建材砖，并且建材砖中的氟化钙不易流失，因此不会对环境造成二次污染，从而可以很好的解决光伏废水污泥的处置问题。
Resource utilization method of fluorine-containing sludge in photovoltaic wastewater
一种光伏废水含氟污泥的资源化利用方法
SHANG YONG (author) / QI CUIHONG (author) / WANG XIAOHONG (author) / SHI MIN (author) / WEI WENXIN (author) / ZHENG WENQIANG (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME