Aluminum sludge resource and safe disposal production system

Abstract

The invention discloses an aluminum sludge resource and safe disposal production system which comprises a pretreatment sludge drying machine, a hydrochloric acid head tank, an acid leaching kettle, a centrifuge, a geosyncline, a distillation kettle, a condenser, a plate-and-frame filter press, a reaction kettle and a vacuum unit, wherein the acid leaching kettle is arranged below the hydrochloric acid head tank, the centrifuge is connected with an outlet at the bottom of the acid leaching kettle, the geosyncline is connected with a liquid outlet of the centrifuge, a feed inlet of the distillation kettle is connected with a conveying pump for the geosyncline, the condenser is connected with a liquid outlet of the distillation kettle, the plate-and-frame filter press is connected with a discharge outlet at the bottom of the distillation kettle, the reaction kettle is connected with an outlet of the condenser, the vacuum unit is connected with the reaction kettle, the upper end of the acid leaching kettle is provided with a feed inlet connected with the sludge drying machine and a liquid dropping hole connected with a conveying pipe for the hydrochloric acid head tank. According to the invention, sludge can be dehydrated and the volume of sludge can be reduced as soon as possible; a recycled aluminum coagulant subjected to simple processing can be subjected to secondary utilization, so that the cost of sewage treatment is reduced, and resources are saved, thereby achieving the purpose of resource re-utilization. The system has the advantages of convenience in operating the treatment technology, simple structure, simple process, low construction cost, and the like.

Description

technical field [0001] The invention relates to the field of resource-based production and manufacturing of aluminum salt sludge, in particular to a production system for recycling aluminum trichloride collected in water purification sludge. Background technique [0002] With the continuous increase in the number and scale of water purification plants in my country, the amount of sludge produced by water purification plants is also increasing. If the sludge water produced by the water purification plant is directly discharged into the water body, it will cause silting of the river, raising the river bed, affecting navigation, polluting water sources, affecting environmental sanitation, and destroying ecological balance. Some organic matter and heavy metals in water purification sludge will also pollute the water environment. [0003] To sum up, with the continuous increase in the amount of water purification sludge and the increasing emphasis on environmental protection, su...

AI Technical Summary

Problems solved by technology

If the sludge water produced by the water purification plant is directly discharged into the water body, it will cause consequences such as silting up the river course, raising the river bed, affecting navigation, polluting water sources, affecting environmental sanitation, and destroying ecological balance.

Some organic matter and heavy metals in water purification sludge will also pollute the water environment

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