Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-cost ceramsite preparation process based on harmless treatment of polluted soil
The invention relates to the technical field of ceramsite preparation, in particular to a low-cost ceramsite preparation process based on polluted soil harmless treatment. According to the method, the heavy metal contaminated soil is firstly subjected to primary purification treatment, then the heavy metal contaminated soil is subjected to secondary purification treatment, and the leaching rate of effective-state heavy metal in the heavy metal contaminated soil is greatly reduced in the forms of precipitation, complexation and adsorption treatment; besides, the purified heavy metal contaminated soil, the admixture, the binder, the inorganic aggregate, the activator and the like are used as raw materials for preparing the ceramsite, the prepared ceramsite is good in quality and relatively low in production cost, and the purpose of turning waste into wealth is achieved. And meanwhile, environmental pollution is reduced, and good environmental benefits, social benefits and economic benefits are obtained.
本发明涉及陶粒制备技术领域，具体为一种基于污染土无害化处理的低成本陶粒制备工艺；本发明中先对重金属污染土壤进行初次净化处理，然后再对其进行二次净化处理，通过沉淀、络合及吸附处理的形式使得有效态重金属在重金属污染土壤中的浸出率大大降低；此外，本发明中以净化处理后的重金属污染土壤、掺和剂、粘结剂、无机骨料及激发剂等作为制备陶粒的原料，所制备的陶粒不仅品质较好，而且生产成本相对较低，还实现了变废为宝的目的；同时也减少了对环境污染的同时也取得了良好的环境效益、社会效益及经济效益。
Low-cost ceramsite preparation process based on harmless treatment of polluted soil
The invention relates to the technical field of ceramsite preparation, in particular to a low-cost ceramsite preparation process based on polluted soil harmless treatment. According to the method, the heavy metal contaminated soil is firstly subjected to primary purification treatment, then the heavy metal contaminated soil is subjected to secondary purification treatment, and the leaching rate of effective-state heavy metal in the heavy metal contaminated soil is greatly reduced in the forms of precipitation, complexation and adsorption treatment; besides, the purified heavy metal contaminated soil, the admixture, the binder, the inorganic aggregate, the activator and the like are used as raw materials for preparing the ceramsite, the prepared ceramsite is good in quality and relatively low in production cost, and the purpose of turning waste into wealth is achieved. And meanwhile, environmental pollution is reduced, and good environmental benefits, social benefits and economic benefits are obtained.
本发明涉及陶粒制备技术领域，具体为一种基于污染土无害化处理的低成本陶粒制备工艺；本发明中先对重金属污染土壤进行初次净化处理，然后再对其进行二次净化处理，通过沉淀、络合及吸附处理的形式使得有效态重金属在重金属污染土壤中的浸出率大大降低；此外，本发明中以净化处理后的重金属污染土壤、掺和剂、粘结剂、无机骨料及激发剂等作为制备陶粒的原料，所制备的陶粒不仅品质较好，而且生产成本相对较低，还实现了变废为宝的目的；同时也减少了对环境污染的同时也取得了良好的环境效益、社会效益及经济效益。
Low-cost ceramsite preparation process based on harmless treatment of polluted soil
一种基于污染土无害化处理的低成本陶粒制备工艺
HE HUIZHOU (Autor:in) / ZHANG XIANZHI (Autor:in) / YANG LI (Autor:in) / XIA HUICHENG (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
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