Preparation method of water works sludge-base porous ceramsite doped with shoe material PU powder

• Main Authors: LIU WENWEI, WANG FEIFENG, WANG QINGHUAN, ZHENG YUYI, LIU CHANGQING, XIE RONGRONG, SUN QIYUAN, LI JIABING, ZHAO YOUCAI, ZHANG PENGSHUAI, WU CHUNSHAN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF NATURAL STONE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a preparation method of water works sludge-base porous ceramsite doped with a shoe material PU powder. The preparation method is characterized by comprising the following steps: mixing powdered sludge and shoe material PU powder according to a weight ratio of (10 to 20) to 1, uniformly stirring in water, clustering into microspheres with a particle size of 5 to 10 mm, and naturally drying; calcining the microspheres in a muffle furnace, stopping heating, cooling to 80 DEG C to obtain a calcined material, and cooling the calcined material in a dryer to room temperature; rinsing the calcined material for 5 min by using 0.1 to 0.3 M of hydrochloric acid, rinsing by using distilled water, repeating for 3 times, drying the calcined material in a drying box until a constant weight, and finally obtaining the sludge-base porous ceramsite doped with the shoe material PU powder. The preparation method is simple in process, low in cost, capable of solving the problem that the traditional sludge-