32results about How to "Small process footprint" patented technology

The invention relates to a boiler blow-down water recovery treatment process combined with reverse osmosis and chemical precipitation technologies. The boiler blow-down water recovery treatment process comprises the following steps of: regulating the temperature, pH value and suspended matter concentration of boiler blow-down water to meet inlet water requirements of a reverse osmosis system; then introducing the boiler blow-down water into the reverse osmosis system, and performing reverse osmosis treatment so as to obtain a dialysate and concentrated liquor, wherein the dialysate is used as a boiler primary demineralized water; and performing chemical precipitation treatment on the concentrated liquor by use of a coagulant and a flocculant, thereby obtaining a supernate, wherein the supernate is used as boiler raw water or make-up water for a water circulation system, so that the recovery treatment of boiler blow-down water is realized. Compared with the prior art, the boiler blow-down water recovery treatment process is capable of realizing complete zero-emission treatment of the boiler blow-down water, recovering high-quality water resources and saving the operation cost, and has the characteristics of general applicability to boiler blowdown systems, stable technical process, low cost and the like.

The invention discloses a method and a device for microalgae coupled anammox autotrophic denitrification, comprising a reactor, a water inlet device and a water outlet device; the water inlet device and the water outlet device are communicated with the reactor; the reactor comprises a reaction barrel , monitor, stirring device and packing frame; the cover and body of the reaction barrel can be detachably connected; the top surface of the packing frame is fixedly installed on the top of the inner wall of the barrel, and the short-range nitrification and anammox reaction are simultaneously realized in the reactor , which can reduce the area of ​​the process, realize high-efficiency denitrification, and replace the traditional aeration method with microalgae to produce oxygen, which can reduce the energy consumption of aeration and significantly reduce the cost of sewage treatment.

The invention relates to an integrated circulating fluidized bed apparatus. The upper part of an external sleeve cylinder is in a circular truncated cone structure with a thick top and a thin bottom, wherein ratio of maximum diameter to minimum diameter is 1.1-5. The lower part of the external sleeve cylinder is a cylinder in equal diameter and is connected to an internal sleeve cylinder through a screw bolt. The fluidized bed apparatus, from bottom to top, successively includes a solid collection port, a center gas distributor, an annular space gas distributor, a solid collector, and the internal sleeve cylinder. A gas outlet and a solid inlet are disposed on the upper part of the external sleeve cylinder. The center gas distributor is located right under the internal sleeve cylinder and the annular space gas distributor is located around the periphery of the center gas distributor and between the internal and the external sleeve cylinders. A gas-solid separation zone is formed in the upper part of the external sleeve cylinder. The lower part of the external sleeve cylinder is totally cylindrical in shape and is separated into a lifting zone and a circulating zone by means of the internal sleeve cylinder. The apparatus integrates a fluidized bed, a solid circulating system and a gas-solid separation system, so that the production apparatus is simplified. Gas flows in the status of plug flow, so that a gas phase and a solid phase are completely contacted and dead zone is avoided. The apparatus reduces power consumption and reduces manufacturing and producing cost.