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Production of hydrogen for combining mineralize refuse, swill waste and sludge

A technology for mineralizing garbage and sludge, which is applied in the direction of waste fuel, climate change adaptation, bio-organic part treatment, etc., can solve the problems of large initial investment, long fermentation cycle, unstable operation, etc., and achieve low infrastructure costs and hydrogen production The effect of high volume and low operating cost

Inactive Publication Date: 2007-01-17
TONGJI UNIV
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  • Application Information

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Problems solved by technology

Therefore, from the perspective of technical analysis, the anaerobic fermentation treatment of swill waste has the advantages of energy saving, high efficiency, and resource recovery, but there are also problems such as long fermentation cycle, large initial investment, unstable operation, and easy acidosis leading to reaction termination. Therefore, it has not been widely used

Method used

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  • Production of hydrogen for combining mineralize refuse, swill waste and sludge

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The 1 ton pilot operation test was carried out at a machinery and equipment factory (equipment production cooperation unit) in Taixing, Jiangsu. The swill for the test was taken from 3 restaurants and hotels in the suburbs of Taixing, Jiangsu. It was randomly collected on site at 2 pm every day and mixed for standby. The composition analysis is shown in Table 2.

[0023] Parameter

[0024] After being mined and air-dried, the mineralized waste that has been closed for 3 years and 15 years of landfill age in a landfill in Jiangsu is sieved to a particle size of 10mm. The scum waste is crushed to a particle size of 10mm by a food crusher. The sludge is taken from the anaerobic granular sludge of a UASB process sewage treatment plant in Wuxi. After elutriation, it is sieved, and the particle size is less than 10mm with a dry weight of 1:5 The ratio is mixed with scaly waste, and the above mixture is sterilized by a dry heat sterilization method at 150°C for 30 minute...

Embodiment 2

[0026] The composition of swill waste collected by a 100t / d solid waste treatment plant in Shanghai is shown in Table 3:

[0027] Parameter

[0028] After being mined and air-dried, the mineralized waste that has been closed for 3 years and landfilled for 10 years at a Shanghai landfill is sieved to a particle size of 5mm. The scum waste is crushed to a particle size of 10mm by a food crusher. The anaerobic sludge is taken from the concentration tank of the adjacent chemical first-level enhanced process sewage plant. After washing, it is sieved, and the sludge with a particle size of less than 5mm is taken as a dry weight of 1:6 The ratio of scaly waste is mixed with scaly waste, and the above mixture is sterilized by a moist heat sterilization method at 100°C for 30 minutes, and then the scaly waste is put into the sieved mineralized waste at a ratio of 5:1 by dry weight of scaly waste. After adjusting the moisture content to 75%~90%, put it into a constant temperature (5...

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Abstract

Production of hydrogen from mineral refuse with swill waste and sludge is carried out by sieving mineral refuse underground for 1-20years to grain size 1-10mm, washing by water, mixing by proportion of 1:1-10:1 and with 1-10mm sieve sludge, dry-heat sterilizing or wet-heat sterilizing at 100-200degree for 0.5-2hrs, pre-treating for 0.5-2hrs to obtain combined fermented substrate, laying aside in closed thermostatic fermenting container, fermenting to produce hydrogen at 25-55degree, pre-treating and utilizing. It is cheap, simple, has more hydrogen output and no secondary pollution. It can be used as fuel or generation raw materials.

Description

Technical field [0001] A method for synergizing mineralized waste to synergize scum waste and sludge to produce hydrogen, relates to a scum waste treatment process, and belongs to the technical field of solid waste recycling. Background technique [0002] Saw feet generally refer to cooked food waste, which is mostly concentrated in restaurants, canteens and other places where people eat. [0003] Swamp feet have poor appearance, high water content and perishable characteristics, which have a greater environmental impact on the urban environment; in addition, due to the complexity of the source of swab feet, there is serious virus pollution, threatening the city’s public health safety; long-term use The disposal method of directly used as animal feed is also improper, which can easily cause a variety of animal plagues. At the same time, there is the danger of forming a pollution chain, threatening human health and safety. Moreover, in recent years, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P3/00C05F9/00
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 赵由才郭强牛冬杰柴晓利钱小青刘常青袁玉玉曹先艳
Owner TONGJI UNIV
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