Concentrating and drying system and method for sludge treatment

A technology of concentration and drying and sludge treatment, which is applied in the fields of sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. , air pollution and other problems, to reduce the reaction time, improve production efficiency, and change the reaction rate.

Inactive Publication Date: 2017-10-24
ZHEJIANG ZHENGHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Sludge incineration is a better treatment method, but the three wastes produced during the incineration process still continue to cause secondary pollution. sources of pollution, will cause new pollution to the air and the environment
Settling tanks are u

Method used

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  • Concentrating and drying system and method for sludge treatment
  • Concentrating and drying system and method for sludge treatment

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Embodiment Construction

[0027] Such as figure 1 and figure 2As shown, it is a concentration and drying system for sludge treatment of the present invention, including water inlet pipe 1, flocculant dissolving tank 2, sludge tank 3, mixing box 4, dehydrator 5, dryer 6 and receiving bucket 7 , The flocculant dissolving tank 2 and the mixing box 4 are equipped with a mechanical agitator 8, and the mechanical agitator 8 stirs the mixed solution, which can promote the chemical reaction speed and improve the production efficiency. One end of the water inlet pipe 1 is connected to the tap water pipe, and the other end is connected to the flocculant dissolving tank 2. A metering pump 9 is installed between the flocculant dissolving tank 2 and the mixing tank 4, and a sludge pump is installed between the sludge pool 3 and the mixing tank 4. 10. A filter pipe 11 is provided between the mixing box 4 and the dehydrator 5, and a return pipe 12 is provided between the mixing box 4 and the sludge tank 3. The part...

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Abstract

The invention discloses a concentrating and drying system and a concentrating and drying method for sludge treatment. The concentrating and drying system comprises a water inlet pipe, a flocculant dissolving tank, a sludge tank, a mixing box, a dehydrating machine, a drying machine and a receiving barrel, wherein the water inlet pipe is connected with the flocculant dissolving tank; a metering pump is arranged between the flocculant dissolving tank and the mixing box; a sludge pump is arranged between the sludge tank and the mixing box; and a filter pipe is arranged between the mixing box and the dehydrating machine. The concentrating and drying method comprises the following steps: (a) drug pre-preparation, (b) mixing reaction; (c) concentrating and dehydrating; (d) drying and preheating; and (e) drying and dehydrating. The drying system is high in work efficiency, time-saving and labor-saving, a lot of sludge can be continuously dried, the drying effect is good, the dying method is simple in operation, reasonable and effective, the drying quality is easy to control, the dried sludge can be used as an organic fertilizer, the utilization rate of the sludge is increased and the waste is changed into treasure.

Description

technical field [0001] The invention belongs to the field of sludge treatment, in particular to a concentration and drying system and method for sludge treatment. Background technique [0002] Sludge is one of the main by-products after sewage treatment, accounting for about 0.3%-0.5% (volume) or 1%-2% (quality) of the sewage treatment volume. With the development of industrial and agricultural production and the continuous construction of sewage treatment plants around , my country's industrial and domestic sewage treatment volume is increasing rapidly, and more sludge is bound to be produced. The composition of sludge is very complex. In addition to a large amount of water, it also contains a large amount of organic matter, refractory organic matter, various trace elements, pathogenic microorganisms, parasite eggs and heavy metals. If it is not treated and discharged randomly, it will cause secondary pollution to the environment, and the difficulty of re-treatment of this ...

Claims

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Application Information

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IPC IPC(8): C02F11/14C02F11/12
CPCC02F11/12C02F11/121C02F11/14
Inventor 刘学应
Owner ZHEJIANG ZHENGHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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