Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cascade quality-divided utilization process for sludge
The invention belongs to the technical field of sludge treatment, and particularly relates to a process for gradient quality-divided utilization of sludge. The process for stepped quality-divided utilization of the sludge comprises the following steps: (1) drying, crushing and floating the sludge to obtain carbon-rich sludge and sludge residues; (2) treating the sludge residues by adopting an acid solution to obtain a metal salt solution and acid-insoluble residues; (3) treating the carbon-rich sludge to prepare sludge carbon; the metal salt solution is treated, and magnesium-aluminum hydrotalcite is prepared; the acid-insoluble residues are treated, and the ceramsite is prepared. According to the step-by-step utilization process of the sludge, the sludge is utilized in a step-by-step and high-quality mode, the sludge carbon, the magnesium-aluminum hydrotalcite and the ceramsite can be prepared, and harmless, recycling and high-quality utilization of the sludge is achieved.
本发明属于污泥处理技术领域，具体涉及一种污泥梯级分质利用的工艺。本发明的污泥梯级分质利用的工艺包括下述步骤：(1)对所述污泥进行干燥、破碎和浮选，得到富炭污泥和污泥残渣；(2)采用酸溶液对所述污泥残渣进行处理，得到金属盐溶液和酸不溶残渣；(3)对所述富炭污泥进行处理，制备得到污泥炭；对所述金属盐溶液进行处理，制备得到镁铝水滑石；对所述酸不溶残渣进行处理，制备得到陶粒。本发明的污泥梯级分质利用的工艺将污泥分质梯级高质化利用，可制备得到污泥炭、镁铝水滑石和陶粒，实现了污泥的无害化、资源化和高质化利用。
Cascade quality-divided utilization process for sludge
The invention belongs to the technical field of sludge treatment, and particularly relates to a process for gradient quality-divided utilization of sludge. The process for stepped quality-divided utilization of the sludge comprises the following steps: (1) drying, crushing and floating the sludge to obtain carbon-rich sludge and sludge residues; (2) treating the sludge residues by adopting an acid solution to obtain a metal salt solution and acid-insoluble residues; (3) treating the carbon-rich sludge to prepare sludge carbon; the metal salt solution is treated, and magnesium-aluminum hydrotalcite is prepared; the acid-insoluble residues are treated, and the ceramsite is prepared. According to the step-by-step utilization process of the sludge, the sludge is utilized in a step-by-step and high-quality mode, the sludge carbon, the magnesium-aluminum hydrotalcite and the ceramsite can be prepared, and harmless, recycling and high-quality utilization of the sludge is achieved.
本发明属于污泥处理技术领域，具体涉及一种污泥梯级分质利用的工艺。本发明的污泥梯级分质利用的工艺包括下述步骤：(1)对所述污泥进行干燥、破碎和浮选，得到富炭污泥和污泥残渣；(2)采用酸溶液对所述污泥残渣进行处理，得到金属盐溶液和酸不溶残渣；(3)对所述富炭污泥进行处理，制备得到污泥炭；对所述金属盐溶液进行处理，制备得到镁铝水滑石；对所述酸不溶残渣进行处理，制备得到陶粒。本发明的污泥梯级分质利用的工艺将污泥分质梯级高质化利用，可制备得到污泥炭、镁铝水滑石和陶粒，实现了污泥的无害化、资源化和高质化利用。
Cascade quality-divided utilization process for sludge
一种污泥梯级分质利用的工艺
XING BAOLIN (Autor:in) / MENG MINGLIANG (Autor:in) / CHENG SONG (Autor:in) / GUO HUI (Autor:in) / HAN XUEFENG (Autor:in) / ZENG HUIHUI (Autor:in) / ZHANG CHUANXIANG (Autor:in) / KANG WEIWEI (Autor:in) / XU BING (Autor:in) / HUANG GUANGXU (Autor:in)
07.07.2023
Patent
Elektronische Ressource
Chinesisch
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