Agricultural waste, also called agricultural waste, mainly includes plant fiber waste (such as crop straw, chaff, husk, leaves, and bagasse, etc.), agricultural product processing waste, livestock and poultry manure, rural domestic waste, sewage, etc. It is huge and widely distributed. It is both a valuable renewable resource and a major source of environmental pollution in […]
First, moisture According to the state of moisture in biomass, it can be divided into three forms. 1. External moisture External moisture is also called physical moisture, which is the moisture attached to the surface of biomass and large pores. When the biomass is placed in the air, the external moisture will naturally evaporate until […]
Biomass refers to various organisms produced through photosynthesis using the atmosphere, water, land, etc., that is, all living organic matter that can grow is collectively called biomass. It includes plants, animals and microorganisms. Broad concept: Biomass includes all plants and microorganisms, as well as animals and food wastes produced by plants and microorganisms. Representative biomass […]
Agricultural field 1. Waste pesticide bottles and packages: It belongs to the hazardous waste hw49 with the waste code of hw900-041-49. However, according to the national list of hazardous wastes (2016 Edition), the collection process of waste pesticide packages produced by scattered farmers is included in the scope of exemption management, that is, the collection […]
The harm of rural solid waste 1. Polluted water source If the solid waste flows into the local rivers and lakes, it will often bring a lot of harmful substances in the waste into the water body, which will do harm to the growth of various aquatic animals and plants, and also cause pollution to […]
Comprehensive utilization status and technology of livestock and poultry manure With the rapid development of animal husbandry in China, the waste of livestock and poultry has also increased significantly. The waste produced by the livestock and poultry industry has exceeded industrial and urban sewage, and it has become a major source of pollution that cannot […]
Definition of hazardous waste According to the law of the people’s Republic of China on the prevention and control of environmental pollution by solid waste and the measures for the administration of hazardous waste business license, hazardous waste refers to the solid waste with hazardous characteristics identified in the list of wastes or in accordance […]
Hazardous waste is a kind of solid waste. In general, the industry is used to divide solid waste into general solid waste and hazardous waste. Generally speaking, solid waste refers to general solid waste. Hazardous waste identification method According to the relevant provisions of the law on the prevention and control of environmental pollution by […]
China’s large-scale construction of sewage and water treatment plants, but sludge treatment and disposal has been neglected. The biggest bottleneck of sludge disposal is drying reduction. High cost has always been a problem that plagued the industry. In recent years, the sewage sludge drying technology has developed rapidly. The working principle and process of the […]
In the process of sewage treatment, most of the pollutants are converted into sludge, so the sludge contains a wide range of pollutants, including various heavy metals, trace highly toxic organics (PCBs, AOX, etc.), and a large number of bacteria. Pathogenic microorganisms such as virions and parasite eggs, if not handled properly, will cause environmental […]