41results about How to "Realize harmless discharge" patented technology

The invention discloses a supercritical water oxidation treatment system for high-salt high-chlorine organic wastewater. Heat of reacted fluid is partially recovered by a second heat exchanger to preheat feedstock, and the heat of fluid passing through a reactor is recovered by steam generated by a steam generator, so that the system investment and operating cost are effectively reduced; a hydraulic cyclone, a first salt storage tank, a second salt storage tank, first and second pipeline filters and a high pressure filling pump are arranged, the pressure reduction requirement of the treatmentsystem can be met, the blockage frequency of the first and second pipeline filters is reduced, and insoluble salt can be continuously removed and discharged; meanwhile, the flow rate of the fluid in the system is controlled to be 1-2m / s, the deposition and blockage of the insoluble salt and soluble salt separated out under the supercritical water condition are further effectively reduced. In addition, equipment and conveying pipelines, which are contacted with the high-salt high-chlorine organic wastewater in the system, are made of composite tubes, the corrosion of the system can be effectively reduced and the equipment investment cost is reduced.

The invention relates to a mine tailings water treatment method, in particular to tailings dry discharge and tailings water treatment process with high efficiency and low energy consumption. The technical scheme includes the following processes: primary sewage concentration process, coarse particle dehydration process, medium particle dehydration process, sewage secondary concentration process, fine particle dehydration process, micro particle concentration and dehydration process. The advantages and application effects of the present invention: greatly reduce the operating cost of the concentrator, and reduce the tailings treatment cost from 10 yuan per ton of mineral powder to 2 yuan; realize the completely closed operation of tailings sewage and waste water reuse or harmless discharge , save water resources, thoroughly solve the pollution of tailings sewage to the surrounding environment and groundwater; completely ban tailings ponds, and reduce mine safety hazards.

The invention belongs to the technical field of waste medicine handling, and particularly relates to a pharmaceutical factory waste medicine handling method. Waste medicine handling equipment used bythe pharmaceutical factory waste medicine handling method comprises an incineration box, two sliding plates, a cam, sliding blocks, six metal spiral corrugated hoses, oil spray nozzles and a servo motor; the two sliding plates are slidably connected to the side wall of the incineration box, and the incineration box is divided into an upper cavity, a middle cavity and a lower cavity by the two sliding plates; the cam is located between the two plate bodies, the cam is driven by the servo motor, wherein the servo motor is located outside the incineration box, and a rotating shaft of the servo motor stretches into the incineration box, and the two sliding plates are driven to slide in the incineration box up and down by the rotating of the cam; the six metal spiral corrugated hoses are correspondingly and averagely arranged in the upper cavity, the middle cavity and the lower cavity; and the oil spray nozzles are arranged on the inner wall of the upper end of the incineration box, and theoil spray nozzles are used for spraying oil towards the inner part of the incineration box to enable granular medicines in the incineration box to be incinerated. According to the pharmaceutical factory waste medicine handling method, the granular medicines can be fully incinerated, and the incineration efficiency is improved.