Mobile laboratory for biological repair of oily sludge

Abstract

The invention provides a mobile laboratory for biological repair of oily sludge. The laboratory can effectively reduce the time of on-site microbial screening and expanding culture of the biological repair of the oily sludge, and achieve real-time monitoring of physical and chemical microbial indices and is strong in manoeuvrability. The laboratory comprises a container body, wherein the container body can be mounted on a carrier to achieve movement; the container body is internally provided with an auxiliary physical and chemical analysis functional zone and a microbial functional zone; a laboratory entry is formed in one side wall of the auxiliary physical and chemical analysis functional zone and provided with a sealing door articulated with the container body; the auxiliary physical and chemical analysis functional zone is separated from the microbial functional zone by a partition; a first communication door for communication between the auxiliary physical and chemical analysis functional zone with the microbial functional zone is arranged on the partition.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a mobile laboratory for bioremediation of oily sludge. Background technique [0002] Oily sludge is a hazardous waste produced in the process of oil extraction, storage, transportation, and refining. Its polluting components are mainly organic compounds, such as petroleum substances. It is more and more popular because of its large single-batch processing capacity, friendly processing conditions, low energy consumption cost, strong operability, and no secondary pollution. In engineering, microbial remediation of oily sludge is often used biopile technology. The natural degradation rate of microorganisms is generally relatively slow, and bioaugmentation technology is generally used to enhance it. Bioaugmentation requires continuous input of indigenous degrading microorganisms into the polluted environment, which can make the microorganisms degrade pollutants fa...

AI Technical Summary

Problems solved by technology

[0003] The technical core of microbial remediation is to screen and expand highly efficient degrading microorganisms. The usual practice is to take samples on site, transport them to the microbiology laboratory for domestication and screening, obtain microbial degradation strains from the indigenous microbial flora, and then expand and transport them to the field for application. ; This method takes a small number of samples each time, and the representativeness of the screened microbial strains is not strong. If there is a case where the microbial load in the sample is zero, a second sampling is required, which takes a long time and is limited by long-distance transportation costs and storage conditions. The microbial activity in the sample and the production of bacterial agents in the expansion stage are affected, and the entire screening and expansion process cannot cope with the possible progress control on site at any time, and it is easy to get out of touch with the on-site repair

[0004] In the process of bioremediation, it is necessary to monitor the microbial biomass in the biopile, the content of petroleum substances, the content of nutrients carbon, nitrogen, and phosphorus, the temperature, moisture, and pH value of the biopile, and the usual method is to take samples on site and submit them for inspection. Since the above indicators are all dynamic indicators, especially the microbial biomass (need to maintain 1.0×10 7 cfu / g soil), nutrient carbon, nitrogen, phosphorus content (need to maintain C:N:P=100:10:1) and other indicators, which need to be tested every day and adjusted in time during the construction process. There is a certain delay in the storage of the state during transportation, which cannot meet the field application

In addition, in the field of soil bioremediation, the existing microbial detection laboratory cannot be moved, and can only screen and expand the microorganisms nearby and provide testing services. For oily sludge on some long-distance oil fields, it is difficult to sample and transport, and it is difficult to screen and expand the microorganisms and detect The cycle is long and the detection data cannot reflect the on-site working conditions in time

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