Application of heterotrophic nitrification-aerobic denitrification complex microbial inoculant as bacterial-algae symbiotic aerobic granular sludge enhancer and method of heterotrophic nitrification-aerobic denitrification complex microbial inoculant as bacterial-algae symbiotic aerobic granular sludge enhancer
A technology for nitrifying compound bacterial agent and aerobic granular sludge, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. Problems such as poor performance and low total nitrogen removal rate can improve the loss of algae, improve tolerance, and solve fragile effects.
Pending Publication Date: 2022-08-02
CHONGQING UNIV OF TECH
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Problems solved by technology
[0003] In view of this, one of the objectives of the present invention is to provide a heterotrophic nitrification-aerobic denitrification compound bacterial agent as an application in the bacteria and algae symbiotic aerobic granular sludge enhancer, through the bacteria and algae symbiotic aerobic granular sludge Heterotrophic nitrification-aerobic denitrification compound bacterial agent is added to the system to solve the problem of algae loss, the problem of aerobic granular sludge crushing, the problem of poor resistance to high ammonia nitrogen and the low removal rate of total nitrogen under low carbon conditions
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Embodiment 1
[0024] The treated wastewater is rural domestic sewage, C / N680 The range is 1.5. During the operation, the compound bacterial agent TA-1 is added in the stirring and aeration stage of each operation cycle. The dosage of the compound bacterial agent TA-1 accounts for 25% of the volume of the treated water. The density of bacteria OD 600 is 1, the number of additions of bacteria is 3 times, and the technological process is as follows figure 1 shown.
[0025] In this example, the algae was FACHB-9 Chlorella pyrenoidosa, the initial inoculated algae and aerobic granular sludge were inoculated according to the mass ratio of 1:5, and the density of the inoculated Chlorella was determined by OD. 680 is 1.5, and the treatment effect is detected after the reactor runs stably.
[0026] The control group was treated the same as the experimental group, the difference was that the compound bacterial agent TA-1 was not added, and the treatment effect was as follows Figures 2 to 5 shown. ...
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The invention discloses an application of a heterotrophic nitrification-aerobic denitrification complex microbial inoculant as an algal-bacterial symbiotic aerobic granular sludge enhancer and a method. The heterotrophic nitrification-aerobic denitrification complex microbial inoculant is added in a stirring aeration stage of wastewater treatment of a sequencing batch reactor, so that the problem of algae loss is solved; the heterotrophic nitrification-aerobic denitrification complex microbial inoculant solves the problems that the existing heterotrophic nitrification-aerobic denitrification complex microbial inoculant solves the problems of aerobic granular sludge crushing, poor high ammonia nitrogen resistance of a system and low total nitrogen removal rate of the system under a low-carbon condition, so that the heterotrophic nitrification-aerobic denitrification complex microbial inoculant can be used for treating sewage.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to the application and method of a heterotrophic nitrification-aerobic denitrification composite bacterial agent as a bacteria-algae symbiotic aerobic granular sludge intensifier. Background technique [0002] Bacteria-algae symbiotic aerobic granular sludge technology is a new type of sewage treatment technology that has emerged in recent years. It has attracted widespread attention due to its small footprint, high degree of automation, low operating energy consumption and material consumption, and carbon emission reduction. However, this technology also has the following problems in practical application: (1) The sequencing batch reactor (SBR) based on the symbiotic aerobic granular sludge technology of bacteria and algae has serious algae loss during the operation process, and needs to be regularly fed with algae, which affects the system. (2) During the operation of the sequencin...
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Login to View More IPC IPC(8): C02F3/34C02F3/12C02F3/32
CPCC02F3/34C02F3/1263C02F3/325C02F2209/08C02F2209/14C02F2209/16Y02W10/10
Inventor 张千秦树敏龙昆杨晨曦赵婷婷张楚赵天涛
Owner CHONGQING UNIV OF TECH