Coking Wastewater Cleaning Bacteria Powder

The role of Coking Wastewater treatment powder:

1. Reduce the content of organic matter in water, control and eliminate odor

2. The high-efficiency activator in the compound bacteria can quickly activate the bacteria and improve the removal ability of organic matter in water, especially for various components that are not easily decomposed, it has the ability to open-loop degradation and accelerate the degradation of pollutants in water

3. It has the advantages of strong anti-shock load capacity, high volume load and low processing cost.

Characteristics of coking wastewater

The coking production process discharges a large amount of waste water containing harmful substances such as phenol, cyanide, oil, ammonia nitrogen, etc., which is a typical industrial waste water containing refractory organic compounds.

Coking wastewater treatment method

1 Activated sludge method

The process of activated sludge treatment of coking phenol-containing wastewater is as follows: the wastewater is pretreated, that is, degreasing, mixing and cooling, and then enters the aeration tank, and then enters the secondary sedimentation tank for solid-liquid separation after aeration.

After treatment, the concentration of phenol in the wastewater can be reduced to about 0.5mg/g. The wastewater is sent back to be recycled or used for coke quenching. Part of the activated sludge is returned to the aeration tank, and the remaining part is concentrated and decolorized.

2 Preprocessing

The pretreatment methods before biological treatment are usually physical and chemical methods, such as air flotation method, stripping method, coagulation sedimentation method, breaking point chlorination method, etc.

The main purpose is to make the influent water of the secondary biochemical treatment process reach the range of biochemical treatment. In the pretreatment process, the stripping method is mainly used for ammonia distillation, and the air flotation method is used for oil removal.

3 Bio-iron method

The biological iron method is an enhanced biological treatment method that adds iron salt in the aeration tank to increase the activated sludge degree of the aeration tank and give full play to the biological oxidation and biological flocculation.

The process of this method includes pretreatment, biochemical treatment and physicochemical treatment of wastewater.

4 Charcoal-Biological

Due to overloaded operation or other reasons, the treated water quality of some biochemical treatment units in coking plants cannot meet the standard.

The carbon-biological method is based on the original traditional biological method plus a stage of activated carbon biological adsorption and filtration treatment. Aged activated carbon uses biological regeneration....