Rapid culture method for salt-tolerant aerobic granular sludge based on flocculent activated sludge inoculation
A technology of aerobic granular sludge and activated sludge, which is applied in the field of sewage biotechnology treatment, can solve the problems of long cultivation time of salt-tolerant aerobic granular sludge, achieve the effect of shortening the time of granulation and enhancing the stability
Pending Publication Date: 2022-07-05
JIAXING UNIV
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[0006] The technical problem to be solved by the present invention is to provide a method for rapid cultivation of salt-tolerant aerobic granular sludge based on inoculation of flocculent activated sludge for the problem of long cultivation time of salt-tolerant aerobic granular sludge in the prior art
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[0023] The present invention is further described below. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can b...
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The invention provides a rapid culture method of salt-tolerant aerobic granular sludge based on flocculent activated sludge inoculation. The method comprises the following steps: 1) putting flocculent aerobic activated sludge as inoculated sludge into a sequencing batch reactor (SBR) for culture; (2) artificially synthesized simulated domestic sewage is adopted as inlet water, and the inoculated sludge is subjected to granulation culture in an SBR reactor; 3) operation regulation and control: during the whole operation period of the SBR reactor, the salinity level is increased according to the gradient that the salinity level is increased by 1% every 14 days, the sedimentation condition of the sludge is observed, the sedimentation time of the sludge is continuously shortened, and when granular sludge is initially formed, adjustment of the sedimentation time is stopped; and 4) regularly carrying out microscopic examination on the sludge, and detecting the particle size distribution condition of the granular sludge in the SBR, wherein when the proportion of the granular sludge larger than 0.2 mm reaches 70% or above, it is considered that the aerobic granular sludge system is started. The method can be used for rapidly culturing the salt-tolerant aerobic granular sludge, and the long-term stability of the salt-tolerant aerobic granular sludge is maintained.
Description
technical field [0001] The invention belongs to the technical field of sewage biotechnology treatment, and in particular relates to a method for rapidly culturing salt-tolerant aerobic granular sludge based on flocculent activated sludge inoculation. Background technique [0002] At present, the annual discharge of high-salt organic wastewater in my country is large and various, and it has become the main source of industrial pollution. According to statistics, among the 42 industrial industries, the top 4 industries in terms of chemical oxygen demand emissions are textile industry, chemical raw material and chemical product manufacturing industry, agricultural and sideline food processing industry, papermaking and paper product industry. The total emission of the four industries is 226,000 tons, accounting for 52.2% of the industrial chemical oxygen demand emission. Most of the industrial wastewater discharged from these industrial enterprises has the characteristics of hi...
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Login to View More IPC IPC(8): C02F3/12C02F101/30
CPCC02F3/1263C02F3/12C02F2101/30C02F2209/02C02F2209/06C02F2203/004C02F2305/06C02F2209/44Y02W10/10
Inventor 欧栋艾宁任杰严泉旺赖常义胡长伟
Owner JIAXING UNIV