A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sintering-free ceramsite for adsorbing fluorine ions in water and preparation method of sintering-free ceramsite
The invention discloses sintering-free ceramsite for adsorbing fluorine ions in water and a preparation method of the sintering-free ceramsite, relates to the technical field of sewage treatment, and aims to solve the problem that the effect of adsorbing the fluorine ions in the water by the sintering-free ceramsite is not good enough. The method comprises the following steps: dewatering and drying the municipal sludge to a certain water content, crushing and sieving with a 200-mesh sieve; sieving the dried low-sodium fly ash to 200 meshes or below; the preparation method comprises the following steps: uniformly mixing pretreated municipal sludge and fly ash with cement and calcium chloride in proportion, adding a certain amount of water, fully and uniformly stirring to form a muddy raw material, adding a proper amount of a foaming agent, starting a foaming machine to foam the muddy raw material, and putting the foamed muddy raw material into a granulator for granulation; separating the granulated ceramsite from the granulator, curing at room temperature, spraying water to the surface of the ceramsite every day during curing, and obtaining the sintering-free ceramsite after water spraying curing is completed. The preparation process is simple and convenient, the cost is low, and the prepared ceramsite has high adsorption efficiency on fluorine ions in water.
本发明公开了一种吸附水中氟离子的免烧结陶粒及其制备方法，涉及污水处理技术领域，为解决免烧结陶粒吸附水中氟离子的效果不够好的问题；本发明包括将市政污泥脱水干燥至一定含水率，粉碎并过200目筛；将干燥的低钠粉煤灰过筛至200目以下；将经过预处理后的市政污泥和粉煤灰，与水泥、氯化钙按比例混合均匀，加入一定量的水充分搅匀成泥状生料，加入适量发泡剂，开启发泡机将泥状生料发泡，发泡后投入造粒机中造粒；将成粒的陶粒从造粒机中脱离出来，在室温下进行养护，养护期间每天向陶粒表面洒水，喷水养护完成后即获得免烧结陶粒；本发明制备工艺简便，成本低廉，制得的陶粒对水中氟离子吸附效率高。
Sintering-free ceramsite for adsorbing fluorine ions in water and preparation method of sintering-free ceramsite
The invention discloses sintering-free ceramsite for adsorbing fluorine ions in water and a preparation method of the sintering-free ceramsite, relates to the technical field of sewage treatment, and aims to solve the problem that the effect of adsorbing the fluorine ions in the water by the sintering-free ceramsite is not good enough. The method comprises the following steps: dewatering and drying the municipal sludge to a certain water content, crushing and sieving with a 200-mesh sieve; sieving the dried low-sodium fly ash to 200 meshes or below; the preparation method comprises the following steps: uniformly mixing pretreated municipal sludge and fly ash with cement and calcium chloride in proportion, adding a certain amount of water, fully and uniformly stirring to form a muddy raw material, adding a proper amount of a foaming agent, starting a foaming machine to foam the muddy raw material, and putting the foamed muddy raw material into a granulator for granulation; separating the granulated ceramsite from the granulator, curing at room temperature, spraying water to the surface of the ceramsite every day during curing, and obtaining the sintering-free ceramsite after water spraying curing is completed. The preparation process is simple and convenient, the cost is low, and the prepared ceramsite has high adsorption efficiency on fluorine ions in water.
本发明公开了一种吸附水中氟离子的免烧结陶粒及其制备方法，涉及污水处理技术领域，为解决免烧结陶粒吸附水中氟离子的效果不够好的问题；本发明包括将市政污泥脱水干燥至一定含水率，粉碎并过200目筛；将干燥的低钠粉煤灰过筛至200目以下；将经过预处理后的市政污泥和粉煤灰，与水泥、氯化钙按比例混合均匀，加入一定量的水充分搅匀成泥状生料，加入适量发泡剂，开启发泡机将泥状生料发泡，发泡后投入造粒机中造粒；将成粒的陶粒从造粒机中脱离出来，在室温下进行养护，养护期间每天向陶粒表面洒水，喷水养护完成后即获得免烧结陶粒；本发明制备工艺简便，成本低廉，制得的陶粒对水中氟离子吸附效率高。
Sintering-free ceramsite for adsorbing fluorine ions in water and preparation method of sintering-free ceramsite
一种吸附水中氟离子的免烧结陶粒及其制备方法
WANG YUNHAO (author) / LIU XIAOHUI (author) / MENG XUAN (author) / JIANG DONG (author) / HENG ZHONGXUAN (author) / FEI XIAOXIN (author) / YANG RUI (author)
2024-12-27
Patent
Electronic Resource
Chinese
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