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Commonly used sludge treatment process and benefit comparison
Project Aerobic compost Anaerobic digestion Dry incineration Dry landfill Drying + high temperature oxidation Technical applicability Only limited to organic hazardous substances and heavy metal-rich sludge rich in organic matter Applicable to some sludge rich in organic matter Suitable for domestic sludge and ordinary industrial sludge, it needs to be accepted by suitable thermal power […]
Rotary kiln calcination process
Rotary kiln refers to rotary calcination kiln (commonly known as rotary kiln) and belongs to the category of building materials equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to different materials processed. Cement kilns are mainly used for calcining cement clinker, divided into two categories: dry process […]
Refinery sludge and it’s hazard
In the petrochemical wastewater treatment technology, oil sludge, scum and tank bottom oil sludge are referred to as “Refinery sludge”. The “Refinery sludge” treatment is a major problem in the process of oil sludge treatment in refineries. If the “Refinery sludge” is improperly handled, it will cause a vicious cycle in the sewage treatment device, […]
Three models of cement kiln co-processing domestic waste
According to the survey results of the Ministry of Health, the amount of garbage generated in rural areas can reach 0.86 kg per person per day, 300 million tons per year, and the garbage pollution situation in China’s towns is very severe. Recently, the coordinated disposal of garbage through cement kilns has received widespread attention […]
Significance of urban domestic waste recycling
In the process of urbanization, garbage as a product of urban metabolism was once a burden of urban development, and many cities in the world have experienced the situation of garbage siege. Nowadays, garbage is considered to be the most inexhaustible “urban mineral deposit” and the “misplaced resource”. This is both an in-depth and mythical […]
Classification of municipal solid waste
From the perspective of the classification of municipal solid waste in cities, they are generally classified according to the composition and quantity of garbage, and the use and treatment of local garbage resources. Such as Germany is generally divided into paper, glass, metal, plastic, etc .; Australia is generally divided into compostable garbage, recyclable garbage, […]
Introduction to the use and working principle of rotary kiln
Rotary kiln is just another name for rotary kiln equipment. Rotary kiln equipment consists of: cylinder, belt, supporting wheel, blocking wheel, transmission device, sealing device, brick block ring, block ring, chain, metal heat exchange. Device, manhole door, fire hood and connection accessories. Rotary kiln can calcinate many different materials and is a common roasting equipment. […]
Analysis of the process of cement rotary kiln
With the rapid development of industries such as construction, road construction, and water conservancy engineering, more and more users are investing in cement production lines, but some users do not know much about the cement production process. This article makes a simple analysis of the cement rotary kiln process, which is convenient. Users understand. 1. […]
Advantages and disadvantages of medical waste treatment methods
Medical waste refers to wastes that are directly or indirectly infectious, toxic, and other harmful, generated by medical and health institutions in medical treatment, prevention, health care, and other related activities. There are five types of medical waste: infectious waste, pathological waste, damaging waste, pharmacological waste and chemical waste. Because medical waste has special properties, […]