Washing wastewater recycling system

Abstract

The invention discloses a washing wastewater recycling system which comprises a water delivery pipeline, and a washing machine, a sedimentation tank, an air floatation treatment chamber, a sewage pump, a folded plate reaction chamber, an air floatation reaction chamber, an activated carbon filtering chamber and a chlorine dioxide disinfection chamber which are sequentially arranged on the water delivery pipeline, and a water return pipeline connected with the washing machine is further arranged on the chlorine dioxide disinfection chamber; an air floatation reaction unit comprises the air floatation reaction chamber, a releaser, an air dissolving pump, an air compressor and an air dissolving water pump; the bottom of the air floatation reaction chamber is connected with the bottom of a dissolved air tank through the releaser, one side of the upper end of the dissolved air tank is connected with the air dissolving pump, and the other side is connected with an air machine; a sludge tankis arranged at the upper part of the right end in the air flotation reaction chamber, and a dissolved air water storage tank is arranged at the lower part of the right end in the air flotation reaction chamber and is connected with the activated carbon filtering chamber through a water conveying pipeline. The washing wastewater recycling system can be independently suitable for each washing workshop, and is short in purification time, small in occupied area, high in sewage treatment efficiency and high in water resource utilization rate.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a recycling system for washing wastewater. Background technique [0002] With the continuous improvement of people's living standards and rapid economic development, more and more laundry factories have appeared in cities, and at the same time, washing wastewater is also continuously produced. Wastewater contains more surfactants, especially linear alkyl Benzenesulfonate (LAS) and high concentrations of oils, fatty acids, phosphates and other synthetic detergent additives, such as sodium sulfate fillers, bleaching agents, enzyme preparations, adhesives, etc. In addition, the appearance of washing wastewater is turbid, the pH is slightly alkaline, the content of suspended solids is high, and the content of microorganisms is high. Phosphate entering the water body will cause eutrophication of the water body. After the surfactant enters the water body, it will poison aquatic ani...

AI Technical Summary

Problems solved by technology

At present, the wastewater produced by laundry is usually directly discharged into the municipal pipe network or municipal sewage plant as domestic wastewater treatment. The process of municipal domestic wastewater treatment is generally through grit chamber → anaerobic pond → aerobic pond → sedimentation pond → clarification pool → discharge, the biochemical treatment pool used in this process not only occupies a large area, but also has poor purification effect of water pollutants

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