Sludge thermal hydrolysis and anaerobic digestion integrated treatment process system
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A treatment process, anaerobic digestion technology, applied in water/sludge/sewage treatment, sludge treatment, biological sludge treatment, etc., can solve problems such as immature technology and process
Pending Publication Date: 2018-04-06
北京达源环保科技有限公司
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Many units in China, represented by Tsinghua University, have also conducted research on the thermal hydrolysis process, but the technology is not yet mature, and there is an urgent need to develop an integrated treatment process system for sludge thermal hydrolysis and anaerobic digestion with independent intellectual property rights
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[0090] (1) The preparation process of the sludge thermal hydrolysis and anaerobic digestion integrated treatment process system is as follows:
[0091]The sludge thermal hydrolysis and anaerobic digestion integrated treatment process system consists of sludge inlet tank 1, sludge pipe 2, sludge inlet pump 3, sludge thickener 4, slurry tank 5, slurry tank sludge inlet flange 6, Stirring blade 7, stirring shaft 8, temperature sensor 9, stirring motor 10, pressure sensor 11, slurry tank steam inlet flange 12, slurry tank steam flow valve 13, slurry tank sludge outlet flange 14, thermal hydrolysis Reaction tank 15, thermal hydrolysis reaction tank steam outlet flange 16, thermal hydrolysis reaction tank sludge outlet flange 17, thermal hydrolysis reaction tank sludge inlet flange 18, thermal hydrolysis catalytic tube filled with nickel-based catalyst 19. Thermal hydrolysis reaction tank steam inlet flange 20, steam pipe 21, thermal hydrolysis reaction tank steam flow valve 22, ste...
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Abstract
The invention discloses a sludge thermal hydrolysis and anaerobic digestion integrated treatment process system. The process system comprises a sludge feed pond, a sludge pipe, a sludge feed pump, a sludge concentrator, a pulping tank, an agitation blade, an agitation shaft, a temperature sensor, an agitation motor, a pressure sensor, a thermal hydrolysis reaction tank, a thermal hydrolysis catalyzing pipe filled with a nickel-based catalyst, a vapor generator, a decompression tank, a vapor storage tank, an advanced oxidation reaction tank, an ozone pipe, an ozone catalyzing pipe filled with atitanium-based catalyst, an ozone generator, a digestion tank, a plate-and-frame filter press, a sludge discharge pond, a methane gas connecting pipe and a methane gas storage tank. The sludge thermal hydrolysis and anaerobic digestion integrated treatment process system has the advantages of low energy consumption, strong bacterium killing capability, good sludge dehydration performance, small dry sludge output, high content of methane gas in biogas, low content of hydrogen sulfide and the like when being applied to sludge treatment.
Description
technical field [0001] The invention belongs to the technical field of sludge treatment, in particular to an integrated treatment process system of sludge thermal hydrolysis and anaerobic digestion. Background technique [0002] Sludge is a by-product of the sewage treatment process. It has the characteristics of high water content, fine particles, and light specific gravity. It contains a large amount of organic matter, nitrogen and phosphorus, pathogenic microorganisms, parasite eggs, viruses, and heavy metal ions. The organic matter in the sludge is perishable and produces stench, which is easy to breed mosquitoes and flies; nutrients such as nitrogen and phosphorus will flow into the surface or underground water body under the washing of rainwater, causing water pollution; untreated or substandard treated sludge is used as agricultural fertilizer or landfill, pathogenic bacteria and parasites enter the soil, and directly or indirectly contact with humans or animals, enda...
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