Sludge treatment companies need to have: hazardous waste business license.
Application to receive a comprehensive business license for the collection, storage and disposal of hazardous waste should have the following conditions:
1, there are more than three environmental engineering or related professional title of intermediate or above, and more than three years of experience in solid waste pollution control of technical personnel.
2, there are in line with the State Council department in charge of transportation of dangerous goods transportation safety requirements of the means of transport;
3, there are in line with national or local environmental protection standards and safety requirements of the packaging tools, transit and temporary storage facilities, equipment, as well as acceptance of the storage facilities, equipment;
4, there are in line with the national or provincial, autonomous regions, municipalities directly under the Central Government Hazardous waste disposal facilities construction planning, in line with national or local environmental protection standards and safety requirements of the disposal facilities, equipment and ancillary pollution prevention and control facilities; of which, the centralized disposal of medical waste facilities, should also comply with national health standards and requirements related to the disposal of medical waste;
5, with the operation of hazardous wastes and hazardous wastes categories of disposal technology and processes, there are hazardous wastes to ensure the safety of operation, rules and regulations, pollution prevention and control. Operating safety regulations, pollution prevention and control measures and emergency rescue measures.
6, landfill disposal of hazardous wastes, should be obtained in accordance with the law of landfill land use rights.
Expanded Information:
1, sludge drying bed
In the past, sludge drying bed is the most commonly used sludge dewatering equipment. Because the operation and maintenance of the sludge drying bed are very simple, so it is especially suitable for use in some small sewage treatment plants.
In 1977, the United States, about 2 / 3 of the sewage treatment plant using sludge drying beds; the use of sludge drying beds produced by the amount of dewatered sludge, accounting for about half of the total amount of dewatered sludge in the United States.
While sludge drying beds are generally suitable for warm and sunny areas, but there are some large sewage treatment plants located in the northern colder areas using sludge drying beds.
2, sludge curing mixing plant
Adopted advanced industrial computer control system, it realizes the automatic proportioning of loess, sludge, cement and lime, and has the characteristics of accurate measurement, good reliability, even mixing, convenient operation, good environmental protection, high production efficiency, low failure rate, etc. It is especially suitable for continuous operation, and is the ideal equipment for sewage treatment plant to treat sludge.
3, slurry separation and dewatering machine
Contrast with plate and frame filter press: the machine has the advantages of large processing capacity, good separation performance, adaptability, low labor intensity, stable performance, easy to install and operate, small footprint, low maintenance costs, etc., and it can be achieved in a closed continuous automatic separation.
4, decanter centrifuge
Horizontal spiral discharge centrifuge (decanter centrifuge) is the use of centrifugal sedimentation principle of separation of suspension equipment. The equivalent diameter of solid-phase particles = 3um, weight concentration ratio: 10% or volume concentration ratio = 70%, liquid-solid specific gravity difference: 0.05g/cm3 of the various suspensions are suitable for the use of such centrifuges for liquid-solid separation or particle classification.
Baidu Encyclopedia - Hazardous Waste Management License
Baidu Encyclopedia - Sludge Treatment