Business scope

Diesel wastewater

Category

Diesel wastewater

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Coal tar wastewater mainly comes from processes such as coking, gas purification, and refining of chemical products, with a complex water quality composition. During coking, coal is thermally cracked to release combined water. Water vapor is drawn out of the coke oven together with raw carbonization gas, and condensed into condensate water after cooling in the primary cooler, which is called surplus ammonia water. This wastewater contains high concentrations of ammonia, phenols, cyanides, sulfides, and organic oils, making it the main source of wastewater for sewage treatment stations. Coal tar wastewater has a complex composition, and its pollutants are divided into two categories: organic and inorganic. Inorganic pollutants generally exist in the form of ammonium salts, while organic pollutants are mainly phenolic compounds, including aliphatic compounds, heterocyclic compounds, and polycyclic aromatic hydrocarbons (PAHs). The water quality varies significantly; it contains a large amount of refractory substances and has poor biodegradability.

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Overview

- Commodity name: Diesel wastewater
Coal tar wastewater mainly comes from processes such as coking, gas purification, and refining of chemical products, with a complex water quality composition. During coking, coal is thermally cracked to release combined water. Water vapor is drawn out of the coke oven together with raw carbonization gas, and condensed into condensate water after cooling in the primary cooler, which is called surplus ammonia water. This wastewater contains high concentrations of ammonia, phenols, cyanides, sulfides, and organic oils, making it the main source of wastewater for sewage treatment stations. Coal tar wastewater has a complex composition, and its pollutants are divided into two categories: organic and inorganic. Inorganic pollutants generally exist in the form of ammonium salts, while organic pollutants are mainly phenolic compounds, including aliphatic compounds, heterocyclic compounds, and polycyclic aromatic hydrocarbons (PAHs). The water quality varies significantly; it contains a large amount of refractory substances and has poor biodegradability.
Translation of Coal Tar Wastewater-Related Text

Coal tar wastewater mainly comes from processes such as coking, gas purification, and refining of chemical products, with a complex water quality composition. During coking, coal is thermally cracked to release combined water. Water vapor is drawn out of the coke oven together with raw carbonization gas, and condensed into condensate water after cooling in the primary cooler, which is called surplus ammonia water. This wastewater contains high concentrations of ammonia, phenols, cyanides, sulfides, and organic oils, making it the main source of wastewater for sewage treatment stations.

Coal tar wastewater has a complex composition, and its pollutants are divided into two categories: organic and inorganic. Inorganic pollutants generally exist in the form of ammonium salts, while organic pollutants are mainly phenolic compounds, including aliphatic compounds, heterocyclic compounds, and polycyclic aromatic hydrocarbons (PAHs). The water quality varies significantly; it contains a large amount of refractory substances and has poor biodegradability.

Process Flow of Coal Tar Wastewater Treatment Equipment

Based on the water quality characteristics of coal tar wastewater, the design scheme of the coal tar wastewater treatment equipment adopts the process of "Oil Separation + Anaerobic + Anoxic + Aerobic + Coagulation Sedimentation + Sand Filter".
1. Pretreatment of coal tar wastewater: An oil separation tank is used. It utilizes the density difference between oil and water in the wastewater to separate and remove oil, achieving the goal of eliminating oil from the wastewater.
2. A²/O (Anaerobic-Anoxic-Oxic) process for coal tar wastewater recovery and treatment equipment: It can effectively remove COD (Chemical Oxygen Demand) with a removal rate of over 90%, and also has a significant effect on nitrogen and phosphorus removal with a removal efficiency of over 80%. The A²/O process not only improves the biodegradability of wastewater but also achieves efficient ammonia nitrogen removal.
Advantages of Coal Tar Wastewater Treatment Equipment
1. The equipment is made of carbon steel with anti-corrosion treatment or stainless steel components, featuring excellent properties such as corrosion resistance and anti-aging. Its service life can be as long as 30 years or more. It is lightweight, easy to transport and install.
2. This set of coal tar wastewater treatment equipment adopts anti-corrosion structures made of glass fiber reinforced plastic (FRP), carbon steel, and stainless steel, and is assembled on-site. This maximizes system integration and reduces the occupied area.
3. The coal tar wastewater treatment equipment can be used individually or in combination of multiple units, offering high flexibility. The equipment is installed underground, and the ground above can be used for greening or other purposes, eliminating the need for building construction, heating, and thermal insulation.
4. The entire set of coal tar wastewater treatment equipment is not limited by the discharge volume of coal tar wastewater. Usually, no dedicated personnel are required for daily management—only regular maintenance and upkeep of the equipment are needed, resulting in low management costs.
5. A design feature of the coal tar wastewater treatment equipment is that the wastewater treatment project can be integrated into the landscape. The treatment system of the entire set of wastewater treatment equipment is equipped with a PLC (Programmable Logic Controller) fully automatic electrical control system and an equipment fault alarm system, ensuring safe and reliable operation.