Microbiological treatment technology for waste mud generated in drilling operation of petroleum and natural gas
A technology for oil and natural gas and microbial treatment, which is used in the field of microbial treatment of waste mud, waste mud treatment and contaminated soil treatment. risk, faster evaporation, lower moisture content
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Embodiment 1
[0031] As a preferred embodiment of the present invention, it utilizes the original mud pool for storing waste water at the well site or builds a new storage pool near the well site. Lay horizontal pipes in parallel on the bottom of the pool, connect the vertical pipes to the horizontal pipes, lay stones on the horizontal pipes, lay non-woven fabrics on the stones, spread coarse sand on the non-woven fabrics, fill the waste mud mixture on the coarse sand, after filling, Laying natural soil, planting plants on the natural soil, the standpipe is higher than the surface of the natural soil.
Embodiment approach
[0033] As the best implementation mode of the present invention, its method is:
[0034] (1) Strain cultivation: The strains can isolate Halomonas and Bacillus strains that grow well in the soil polluted by waste mud, and after cultivation and domestication, they can be used as strains for treating waste mud.
[0035] (2) The soil added to the mud has a moisture content below 35%, and the volume ratio of soil to waste mud is 1.5:1 to 2:1; the volume ratio of bacteria to waste mud is 0.001 to 0.005:1; sawdust and waste mud are added The volume ratio is 0.5-1.5:1.
[0036] (3) Lay PVC or HDPE pipes with diameters of 10-20cm perforated (4×1.25cm aperture, interval 15-20cm) at the bottom of the pool. The horizontal pipes are laid in parallel with a spacing of 8-10m; the vertical pipes are connected to the horizontal pipes without perforation, and the spacing of the vertical pipes is 5-8m. The top of the vertical pipe is 10-20cm higher than the final covering soil.
[0037] (4) ...
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