How many treatment methods do you want to Zhi hazardous waste? What is hazardous waste? That is, hazardous waste. Refers to various toxicity, combustibility, explosive, corrosive, chemical reactivity and infectivity, wastes with hazardous characteristics listed in the national hazardous waste list or identified according to the national hazardous waste identification standards and methods prescribed by the state.
There are many kinds and complex components of hazardous wastes, and their pollution has potential and lag. National laws and regulations as well as relevant policies strongly encourage the recycling of resources. For example, the law on the Prevention and Control of Environmental Pollution by Solid Waste clearly requires the full recycling and rational utilization of solid waste and the recycling of waste. Different types of hazardous waste also contain many components with utilization value, such as recycling and comprehensive utilization through reasonable and environmental protection measures, then it will not only reduce the disposal pressure of hazardous waste, but also turn waste into treasure and obtain objective economic benefits. The recycling and utilization of hazardous waste is conducive to reducing the amount of production and harmfulness from the source, but comprehensive and strict risk control should be carried out. We should strengthen guidance and standardization, set rules and thresholds.
Since the beginning of the 21st century, Henan Zhengzhou Mining Machinery Co., Ltd. has cooperated with first-class domestic universities and research centers such as Zhengzhou University, Dongguan Innovation Center of Tsinghua University, Guangzhou University and so on to devote itself to solid waste, the technological research of hazardous waste treatment and the research and development of complete set of technological equipment make solid waste and hazardous waste treatment realize the four-oriented goal of harmlessness, reduction, stabilization and resource utilization. From overall project planning to detailed process Formula, process parameters, process design, equipment design and manufacturing, engineering installation, debugging, technical training and after-sales service provide complete industry chain and life cycle services, and provide a complete set of systematic solutions.
Disposal method of hazardous waste recycling
Preprocessing technology
Physical treatment, chemical treatment and biological treatment are used to reduce hazardous waste, neutralize harmful substances and degrade organic matters in solid waste, thus achieving harmless or comprehensive utilization.
Safe landfill technology
The safe landfill method is a method that developing countries use relatively more hazardous waste treatment methods. Its essence is to pave the waste into a thin layer with a certain thickness and then compact it and cover the soil.
Incineration Technology
Incineration is a high-temperature treatment technology of hazardous waste. After the hazardous waste is burned in the first combustion chamber with a temperature of 850℃, the generated flue gas enters the second combustion chamber with a temperature of 1200℃ and is burned to destroy various harmful substances.
Comprehensive Utilization Technology
Comprehensive utilization is the comprehensive treatment of hazardous waste, transforming it into available resources, realizing the purpose of recycling hazardous waste and slowing down quantification, at present, the comprehensive utilization methods of hazardous wastes mainly include solvent regeneration, grease regeneration, fuel utilization and metal recovery. For example, inorganic ceramic membrane technology is used to treat waste emulsion; Molecular distillation technology is used to recycle waste mineral oil; Acid leaching and extraction technology of heavy metal waste are used to treat waste harmlessly to obtain renewable resources, etc.
Henan Zhengzhou Mining Machinery Co., Ltd. has built a pilot production line of solid waste and hazardous waste resource treatment system by itself, realizing ingredients, mixing, granulation, plastic, drying, calcining, cooling, sieving, the whole process of flue gas purification, such as on-line monitoring, is near the pilot workshop of industrial production. It can satisfy the pilot production of various solid waste and hazardous waste treatment before investment, including process Formula analysis, process parameter analysis and pilot test research, so as to protect the investment safety of the whole industrial production line in the later stage.
Henan Zhengzhou Mining Machinery Co., Ltd. has successively completed the research and development and design of the first domestic hazardous waste sludge recycling ceramsite project, the first domestic pelletizing municipal sludge recycling project in kiln, the fly ash and gangue recycling production line project, equipment manufacturing, installation and debugging, until production and operation. After that, it successively undertook the pilot test of various sludge resource treatment such as electroplating sludge and pickling sludge, the pilot test of medical waste incineration treatment, the pilot test of domestic waste incineration treatment and the pilot test of various industrial hazardous waste treatment.
Suggestions on hazardous waste disposal
1. Establish a reliable recycling mode. Point-to-point recycling is more controllable than point-to-Point Comprehensive utilization. The start point and end point are clear, and the recycling process is transparent, which is conducive to management and control.
2. Clear and reliable recycling types. Some relatively simple hazardous wastes can be selected for point-to-point recycling and utilization pilot.
3. Select a reliable equipment enterprise pilot. These industries either have mature processes, reliable pollution control facilities, or have good social reputation, and have good technical support for the technological process of digestion and disposal of hazardous wastes.
Since 2009, Henan Zhengzhou Mining Machinery has entered the solid waste treatment industry relying on the rotary kiln and the second combustion chamber, and in the aspect of solid waste treatment, after many pilot tests, research and development, improvement of technology, successfully metallurgy, chemical industry, building Materials Technology interconnects with each other, and successfully develops solid waste such as municipal sludge, industrial sludge, contaminated soil, electroplating sludge, sand washing sludge, fly ash, aluminium Ash, fly ash, gangue, various kinds of tailings, etc, the process of preparing light ceramsite through high temperature calcination of rotary kiln after proper proportion of various raw materials. The made ceramsite can be used for the production of ceramsite wall materials, construction backfilling, flowers, filter materials, etc. It has truly realized the disposal mode of reduction, harmlessness and resource utilization of solid waste disposal.
Conclusion
The recycling and utilization of hazardous waste is conducive to reducing the amount of production and harmfulness from the source, but comprehensive and strict risk control should be carried out.
Recycling and utilization of industrial hazardous waste will be a big market, and harmless treatment and comprehensive utilization technology will be the future development direction. Zheng mining machinery always adheres to the principle of serving the country by industry, complying with the current situation, relying on continuously enhanced innovation ability, research and development design ability, outstanding and flexible customization ability, manufacturing ability of the whole production line, good product quality, A perfect installation and debugging service team makes its own efforts for the project construction of customers and the social development, winning the trust and cooperation of customers in the industry.
The core cultural concept of ZK CORP is that "morality comes in advance and people come behind"; "timely delivery and timely payment" is the working style of Zheng mine; "being honest" is the foundation of establishing a career, "Fine work" is the working habit all the time, and "service first" is the eternal pursuit.