On November 21st, the demonstration of environmental protection and solid waste resources comprehensive utilization demonstration and new technology on-site promotion meeting of stone processing enterprises jointly sponsored by the old expert technology center of Chinese Academy of Sciences and Weifang Zhong'an Environmental Protection Equipment Co., Ltd. of Shandong Province in Beijing, Laizhou, Shandong Province Rui Stone held. Experts from the Chinese Academy of Sciences, the Ministry of Environmental Protection Evaluation Center and relevant government departments and industry associations from Laizhou attended the meeting. The technology was developed by the old expert technology center of the Chinese Academy of Sciences and the researchers of Weifang Zhongan Environmental Sanitation Equipment Co., Ltd. Launched, the project consists of three aspects, namely, the wastewater treatment plate and dust control plate in the production process, as well as the high-value comprehensive utilization development of sawing solid waste resources. In the wastewater treatment, they have developed a ZA_001 cleaning agent for the cleaning of micropores of ceramic filters, which has a good cleaning effect, no corrosion, and organic complexing agent. And chelating agent configuration, weak acid, no inorganic triacids, and an automatic backwashing device. In the dust control of the workshop, a micro-negative pressure dust-collecting water filter dust removal device was developed, which consists of a fan system, a rotary spray aid system, a water mist generating device system, a water supply system, and a scraper system. The device has a fully enclosed structure. It can realize the synchronous dust collection and treatment system produced by stone enterprises, avoiding the generation of new pollution sources. In terms of comprehensive utilization, researchers will conduct comprehensive technical development on the comprehensive utilization of waste materials such as large particle slag, sediment sludge after wastewater treatment, and collected dust to achieve higher value comprehensive utilization and application development of waste. . 
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