Preparation method of well site environment-friendly toilet degradation product and method for treating water-based solid waste

A degradable and biological treatment technology, which is applied in the field of water-based solid waste treatment and the preparation of degraded products of well-site environmental protection toilets, can solve the problems of high disposal costs, high transportation costs, increased safety and environmental protection risks, and achieves reduction in use and transfer. amount of effect

Pending Publication Date: 2021-03-12
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in Sichuan and Chongqing, a small part of water-based drilling solid waste is used for biological treatment and resource soil utilization, and most of it is mainly sent to local brick factories for brick making, which not only results in a large amount of transshipment and high disposal costs, but also increases the cost of transshipment. safety and environmental risks
At present, the circulating water flushing microbial degradation environmental protection toilet and the water-free biodegradation e

Method used

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  • Preparation method of well site environment-friendly toilet degradation product and method for treating water-based solid waste
  • Preparation method of well site environment-friendly toilet degradation product and method for treating water-based solid waste
  • Preparation method of well site environment-friendly toilet degradation product and method for treating water-based solid waste

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preparation example Construction

[0024] In an exemplary embodiment of the present invention, the preparation method of the degradation product of the environmental protection toilet at the well site includes the steps of: treating the domestic wastewater and human feces produced by the environmental protection toilet at the well site with biological agents, and then filtering and drying to a water content of 30-55% , to obtain the degradation product of the well site environmental protection toilet. Wherein, the biological agent is Bacillus velezensis B3-4 or its bacterial suspension or its culture solution or its fermentation product, and the degradation product of the environmental protection toilet at the well site may include 40-62% wt of organic matter, 0.5- 1.0%wt nitrogen, 1.2-1.5%wt phosphorus, 0.8-1.2%wt potassium. The degraded products of environmental protection toilets on the well site contain nutrients such as organic matter, nitrogen, phosphorus, and potassium. They are high-quality raw material...

example 1

[0037] (1) Isolation, purification and preservation of Bacillus velezensis B3-4 (referred to as "strain B3-4")

[0038] The collected human feces samples were cryopreserved and brought back to the laboratory. Take 5 g of feces samples, use the gradient dilution method, spread on the beef extract peptone medium, and incubate at a constant temperature of 30°C. After the colonies grew out, the colonies with different shapes were selected from the plate and streaked on the beef extract peptone plate. After culturing for 16 hours, pick a ring for repeated streak culture, combined with microscopic observation, until purification. The purified strains were stored in the test tube slant medium of beef extract peptone medium.

[0039] As shown in Figure 1, the isolated and purified strain B3-4 obtained in this example was cultured on beef extract peptone medium, and after 48 hours of culture, the colony was round, white, with a diameter of 0.5-1 mm, irregular edges, flat and moist. ...

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Abstract

The invention provides a preparation method of a well site environment-friendly toilet degradation product and a method for treating water-based solid waste, and the well site environment-friendly toilet degradation product cooperative biological treatment method for water-based drilling solid waste comprises the following steps of: uniformly mixing to-be-treated water-based drilling solid waste,inoculating a microbial degradation strain with a degradation effect according to a weight ratio of 0.1-0.3%, and fully and uniformly mixing the substances; adding an environment-friendly toilet degradation product which accounts for 0.5-1wt% of the amount of the to-be-treated water-based drilling solid waste, and fully and uniformly mixing the environment-friendly toilet degradation product and the water-based drilling solid waste; adding fine fresh soil of which the amount is 0.1-1 time that of the to-be-treated solid waste, uniformly mixing the substances, and performing stacking; coveringthe surface of the treated object with fresh soil with a certain thickness, and sowing and planting ornamental or firewood plants on the treated object, thus forming a well site solid waste-microorganism-plant combined degradation system. The method has the advantages that cooperative treatment and resource soil utilization of the drilling living solid waste and the drilling water-based solid waste can be achieved, the purposes of double emission reduction and utilization are achieved, the reduction, harmlessness and resource principle of solid waste disposal is achieved, and the outward transfer and disposal amount and cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of oil and gas exploration and drilling pollution control, and specifically relates to a method for preparing degraded products of an environmental protection toilet at a well site and a method for treating water-based solid waste. Background technique [0002] Water-based drilling solid waste is an inevitable product of conventional drilling operations in oil and gas exploration, and the amount generated in Sichuan and Chongqing areas is generally 0.35-0.4m 3 / m footage. At present, in Sichuan and Chongqing, a small part of water-based drilling solid waste is used for biological treatment and resource soil utilization, and most of it is mainly sent to local brick factories for brick making, which not only results in a large amount of transshipment and high disposal costs, but also increases the cost of transshipment. safety and environmental risks. At present, the circulating water flushing microbial degr...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F11/12B09B3/00B09B5/00
CPCC02F3/34C02F11/12B09B3/00B09B5/00C02F2103/005
Inventor 陈立荣刘汉军蒋学彬张敏干汉川曾升泰王荣黄敏舒畅李辉李盛林文炜涛尹江杨永红李绍坤雷涛陈雷陈洪
Owner BC P INC CHINA NAT PETROLEUM CORP
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