Xiangcheng Washing Plant Sewage Treatment Equipment

Xiangcheng Washing Plant Sewage Treatment Equipment

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Xu Yanqing

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Introduction

1. Capable of treating comprehensive wastewater from living systems and similar organic wastewater;

2. It adopts carbon steel anti-corrosion, stainless steel, glass fiber reinforced plastic structure, with excellent characteristics such as corrosion resistance and aging resistance, and its service life is more than 50 years;
3. The complete set of equipment is simple to construct and easy to operate. All mechanical equipment is automatically controlled, and all devices can be installed below the surface, which can be used as a green belt;

Water quality explanation

The main characteristic of sewage is that the main pollutants in sewage are anionic surfactantsLASHigh concentration in sewageLASIt has a certain inhibitory effect on the activity and proliferation of microbial cells. Therefore, the difficulty of biodegradation of washing wastewater increases. The sewage is alkaline,pHThe value is usually within9—12.In addition, there is a lack of nitrogen elements for microbial synthesis of cytoplasm * in sewage. Based on the characteristics of laundry wastewater, a process flow combining physical and biochemical treatment is determined. The physical and chemical treatment adopts coagulation precipitation, while the biochemical treatment adopts hydrolysis acidification and contact oxidation.

Xiangcheng Washing Plant Sewage Treatment Equipment

working principle
1、 Anaerobic biofilter
1）Filtering function: The packing material intercepts and filters large particles and suspended solids in the incoming water;
2）Hydrolysis: Anaerobic microorganisms can hydrolyze insoluble substances of large molecules into soluble substances of small molecules;
3）Absorption function: Anaerobic microorganisms adsorb and absorb organic pollutants in water, some of which are used for their own growth and reproduction, and some are passed through in the form of biogasUType water seal out;
4）Denitrification effect: The effluent from the contact oxidation bed is refluxed to the anaerobic filter, and denitrifying bacteria in the anaerobic microorganisms can utilize the nitrate nitrogen in the reflux water and convert it into nitrogen gas to remove nitrogen substances from the wastewater.

2、 Contact oxidation bed
1）Adsorption effect: During the growth and reproduction process of aerobic microorganisms on fillers, they form biofilms with larger surface area and higher concentration, which can adsorb a large amount of organic pollutants in water and reduce the concentration of pollutants;
2）Ingestion and decomposition: With continuous air flow into the reactor, aerobic microorganisms can absorb adsorbed organic pollutants as nutrients and metabolize them. Some of them are used for their own growth and reproduction, while others are converted into carbon dioxide and water.
Contact oxidation bed further reduces the concentration of organic pollutants in rural sewage, resulting in effluentCODcrTheBOD5Removal rate reached80%Above, it can meet the second level standard for sewage discharge.
3、 Sedimentation tank
1）By utilizing gravity, suspended sludge with a specific gravity greater than that of water in the effluent from the contact oxidation bed can sink to the bottom of the tank, thereby removing it from the water and ensuring good effluent quality;
2）The sludge settles to the bottom and automatically returns to the contact oxidation bed to maintain the sludge concentration in the contact oxidation bed.
4、 Disinfection pool
By using solid chlorine to disinfect the effluent, it can effectively kill pathogenic microorganisms such as bacteria, Escherichia coli, and viruses in the water. The treated water is clear and transparent, odorless, and the bacterial and Escherichia coli counts can meet the requirements of wastewater.

Equipment specifications and models

Nature of Business

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