Inorganic mineral composite dehydrating agent for rapidly dehydrating sludge and preparation method and application thereof

• Main Authors: LU TINGGUI, PANG YAFENG, LI JIE, LI FENGJUN, FAN CHUANGANG, FAN XI
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses an inorganic mineral composite dehydrating agent for rapidly dehydrating sludge and a preparation method and application thereof, and belongs to the technical field of sludge dehydration. The inorganic mineral composite dehydrating agent comprises an inorganic mineral material, and the inorganic mineral material is composed of the following components in percentage by mass:10-30% of general cement, 10-60% of aluminate-containing cement, 0-15% of alkaline earth metal oxide, 5-60% of artificial volcanic ash, 10-30% of gypsum and 0-5% of limestone. The composite dehydrating agent is added into sludge to be treated, the sludge can be rapidly and efficiently dehydrated, deep dehydration of the sludge is achieved, and the application process of the composite dehydratingagent is easy to operate and low in energy consumption. 本发明公开了一种污泥快速脱水的无机矿物复合脱水剂及其制备方法和应用，属于污泥脱水技术领域。本发明的无机矿物复合脱水剂，包含无机矿物材料，该无机矿物材料由如下质量百分比的组分组成：通用水泥10～30％、含铝酸盐水泥10～60％、碱土金属氧化物0～15％、人造火山灰5～60％、石膏10～30％和石灰石0～5％。将本发明的复合脱水剂加入待处理污