EXPERIMENTAL RESEARCH ON OILY SLUDGE SOLIDIFICATION TECHNOLOGY BASED ON ENVIRONMENTAL PROTECTION AND RENEWABLE UTILIZATION

In order to study the solidification technology of oily sludge in one oil field in China, the oily sludge was treated with solidification technology using the sewage tank of the sewage treatment center of an oil production plant combined station as a water sample and cement as a curing agent. Bricks made with waste as the main material are relatively fragile in stability, durability and environmental protection, which have been restricting the development of waste innocuous and resource management. This article analyzed the component content of oily sludge, measured the strength of the solidified product and the oil content of the solidified block leachate and its influencing factors, and evaluated the environmental safety performance of the solidified leachate from the aspects of COD, oil content and toxic element content. Experimental research results show that the amount of cement determines the compressive strength of the solidified block. When the quality of cement (Q1)/the quality of sludge (Q2) is 2.00, the compressive strength can reach 15.74MPa. At 50 degrees C with the increase of time. cement addition and Q1/Q2 weight ratio, the COD of the leachate is less than 150mg/L, and the leachate meets the secondary discharge requirements of the comprehensive sewage discharge standard and the environmental protection and renewable technical requirements.