Municipal sludge treatment method
A technology of municipal sludge and treatment method, which is applied in sludge treatment, water/sludge/sewage treatment, sludge treatment by temperature control, etc., can solve the problems of poor purification effect of municipal sludge and large environmental pollution, etc. Achieve harmless treatment of municipal sludge, reduce pollution, and facilitate storage and transportation.
Active Publication Date: 2019-07-02
温州广德建设有限公司
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Problems solved by technology
It is necessary to carry out harmless treatment of municipal sludge. The harmless treatment commonly used in the prior art is to dehydrate and dry the municipal sludge and then incinerate it directly. The incineration of organic pollutants in the treatment process is likely to generate dioxins. Municipal sludge The purification effect is not good, and the pollution to the environment is large
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[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0029] The specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as required after reading this description, but as long as the claims of the present invention are protected by patent law.
[0030] Municipal sludge treatment methods such as Figure 1 to Figure 2 As shown, it includes step 1, sludge heat treatment, heat treatment of municipal sludge, heating municipal sludge to 100-120°C with sludge drying equipment, maintaining it for 2-4 hours, and cooling naturally. Step 2, sludge purification, making a purified water tank 1, in which a plurality of connecting columns 3 and support nets 4 welded on the connecting columns 3 are arranged. An adsorption resin 5 is fixed on the support net ...
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The invention discloses a municipal sludge treatment method, which comprises the steps of sludge heat treatment, sludge purification, anaerobic composting, sludge washing and dewatering and drying. The municipal sludge treatment method has the advantages and effects that sludge heat treatment is firstly carried out, bacteria and eggs in municipal sludge are primarily killed, organic pollutants in the municipal sludge are adsorbed by adopting adsorption resin in sludge purification, heavy metal ions in the municipal sludge are adsorbed by chelate resin, the organic pollutants in the municipal sludge are further removed in anaerobic composting, the heavy metal ions in the municipal sludge are further removed in sludge washing, and the municipal sludge subjected to innocent treatment is obtained after dewatering and drying, so that the effects of innocent treatment of the municipal sludge, reduction of pollution of the municipal sludge, environmental protection and resource recycling are achieved.
Description
technical field [0001] The invention relates to municipal waste treatment, in particular to a municipal sludge treatment method. Background technique [0002] With the rapid development of social economy and urbanization, the amount of municipal sewage discharge and treatment in the city is increasing, and the large amount of sludge produced by municipal sewage treatment has brought new challenges to the city's environmental management. Municipal sludge contains a large number of impurities such as bacteria, viruses, insect eggs, and heavy metals. It is necessary to carry out harmless treatment of municipal sludge. The harmless treatment commonly used in the prior art is to dehydrate and dry the municipal sludge and then incinerate it directly. The incineration of organic pollutants in the treatment process is likely to generate dioxins. Municipal sludge The purification effect is not good, and the pollution to the environment is large. Contents of the invention [0003]...
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IPC IPC(8): C02F11/18C02F11/00C02F11/12C05F7/00C05F17/00
CPCC02F11/00C02F11/12C02F11/18C05F7/00C05F17/00C05F11/08Y02A40/20Y02E50/30Y02W30/40
Inventor 黄文龙吴惟益翁罗敏吴云雨
Owner 温州广德建设有限公司