The treatment capacity of the sludge dehydrator shall be controlled within an appropriate range and adjusted in combination with the flow of sludge, the flow of flocculant and the difference degree, so as to avoid the frequent fluctuation of the system and affect the treatment effect caused by the sudden increase of load, and realize relatively large equipment treatment efficiency at the same time;
A modifier is used to convert the organic matter such as protein and sugar in the sludge into oil and gas. The oil and gas becomes oil and gas in the carbonization process. The oil and gas is exported from the carbonization furnace and burned in the combustion chamber, which provides a main energy source for the carbonization furnace.
In recent years, China has issued a series of policies and measures to promote the development of sludge disposal industry. Among them, proper disposal of sludge, effective utilization of resources in sludge, improvement of disposal efficiency and reduction of disposal cost have become the focus of the industry.
Electroplating pickling sludge is mainly the sludge produced in the production process of electroplating and stainless steel processing industry. It itself contains a large amount of heavy metals nickel and chromium.
Chemical industry wastewater mainly comes from production wastewater discharged from petrochemical industry, coal chemical industry, acid-base industry, chemical fertilizer industry, plastic industry, pharmaceutical industry, dye industry, rubber industry, etc. The main measures for the prevention and control of chemical wastewater pollution are as follows: firstly, we should reform the production process and equipment, reduce pollutants, prevent the discharge of wastewater, and carry out comprehensive utilization and recovery;
According to the three existing states of oil in water - suspended state, emulsified state and dissolved state, and the characteristics of wastewater in different states, this paper expounds the main treatment methods of different kinds of oily wastewater, including physical method, chemical method and biological method, and summarizes the characteristics and application conditions of various methods.
The determination methods of 26 indexes encountered in the process of water treatment, as well as the common sense in the water treatment laboratory and the quality control of the laboratory, and some explanations of anaerobic terms are attached.
When the centrifuge is running, it will produce very large stress. All high stress parts exposed to wear and / or stress crack corrosion shall be continuously monitored to avoid material leakage. In order to ensure the safe and long-term operation of the equipment, the company recommends customers to regularly inspect the equipment for corrosion
Whether from the advocacy of various environmental protection policies or the original intention of sludge treatment, the realization of "four modernizations" after sludge treatment should be regarded as the ultimate goal. Then, what kind of sludge treatment is adopted by the ultra-high pressure sludge dryer to realize the "four modernizations" of sludge disposal.
Physical treatment refers to the treatment method of changing the composition of wastewater by physical action. The physical treatment methods used in food industry wastewater treatment include screening, skimming, regulation, sedimentation, air flotation, centrifugal separation, filtration, microfiltration, etc. The first five processes are mostly used for pretreatment or primary treatment, and the last three are mainly used for advanced treatment.
Petroleum refining wastewater is a kind of industrial wastewater with serious pollution and difficult treatment in the field of treatment. It is characterized by high ammonia nitrogen, complex pollutant composition, high concentration, mostly biodegradable toxic and harmful organic compounds, and large fluctuations in water quality and quantity.
With the rapid development of livestock and poultry breeding industry in China, it not only drives the development of rural economy, but also brings serious environmental pollution problems The bottleneck of aquaculture wastewater purification is the removal of a large amount of high concentration NH4 + - N, which will be toxic to plants
With the rapid development of economy, the environmental pollution caused by the production process of chemical products is increasing, and the harm to human health is becoming more and more common and serious. In particular, most of the organic substances discharged from the production process of fine chemical products
Since the on-line monitoring of total phosphorus has been fully launched in domestic sewage plants, various sewage plants have experienced many stories, among which the most common is the chemical phosphorus removal process operation in sewage plants. This wave of operation has brought considerable troubles to the sewage plant in terms of technology, economy and management.
The residual activated sludge of refinery was dewatered, the flocculant and its dosage were determined, and the effects of relevant operating parameters on sludge dewatering were investigated.
Sludge dewatering polyacrylamide solution is best prepared and used now to prevent it from being placed for too long, so as not to affect the treatment effect.
Sludge with organic matter as the main component can be called organic sludge. Its main characteristics are high content of organic matter, easy to decay and stink, fine particles
Drilling wastewater is a kind of special industrial wastewater produced in the process of drilling operation.
With the rapid development of livestock and poultry breeding industry in China, it not only drives the development of rural economy, but also brings serious environmental pollution problems The bottleneck of aquaculture wastewater purification is the removal of a large amount of high concentration NH4 + - N, which will be toxic to plants.