4results about How to "Effective pH adjustment" patented technology

The invention belongs to the technical field of aqueous zinc ion batteries, and particularly discloses a compound additive-containing composite electrolyte for an aqueous zinc ion battery, the composite electrolyte is composed of a water-soluble zinc salt, deionized water and a compound additive, and the compound additive is formed by compounding tetrahydrofuran and phosphoric acid. The tetrahydrofuran and phosphoric acid compounded additive can effectively adjust the pH value of the electrolyte and keep the electrolyte stable in the electrochemical cycle process, the tetrahydrofuran additive changes a zinc ion solvated structure and meanwhile can partially open a ring under the induction of phosphoric acid, more stable linear polyether is formed and anchored on the surface of a zinc negative electrode, and the electrolyte is more stable in performance. Therefore, hydrogen evolution reaction and corrosion of the zinc negative electrode are inhibited, zinc ions are guided to be uniformly deposited, the problems of zinc dendrite growth and the like are solved, and finally the cycling stability of the zinc negative electrode is improved to a great extent.

The utility model provides a kind of wastewater integrated treatment system with efficient flexible structure, comprising: triplex box, dosing mixing assembly, flocculation reactor, the triplex box is connected with desulfurization wastewater buffer tank drainage end by wastewater pipeline, branch collector and valve, the dosing mixing assembly is connected with desulfurization wastewater buffer tank drainage end by wastewater pipeline, branch collector and valve, compared with prior art, the utility model has the beneficial effects as follows: by installing efficient flocculant dosing, fast mixing integrated dosing mixing assembly beside existing triplex box, realize the direct dosing of composite powder efficient flocculant and the full and even mixing with desulfurization wastewater, meet the hydraulic condition of flocculation reaction of desulfurization wastewater and efficient flocculant, parallel operation with existing triplex box system and each other as standby, not only can improve wastewater treatment efficiency, also can ensure the stability of wastewater treatment operation.

The invention discloses a process and a method for preparing a nano material. Specifically, lithium iron phosphate, composite sodium iron phosphate and calcium carbonate are efficiently prepared by adopting a sol-gel method and a precipitation method respectively. When the lithium iron phosphate and the composite sodium iron phosphate are prepared, the reaction process is controllable by regulating and controlling the oscillation condition, the reaction temperature, the pH value and the retention time, and a target product is obtained after the gel is calcined. When calcium carbonate is prepared, nucleation and crystallization are enhanced by controlling the flow rates of a precursor, a precipitator and a surfactant and combining oscillation. According to the method, mixed mass transfer is enhanced by means of periodic oscillatory flow, local supersaturation and concentration gradient are inhibited, reactant deposition and channel blockage are reduced, continuous and stable production is guaranteed, meanwhile, the use amount and cost of a surfactant are reduced, and accurate regulation and control over the particle size, morphology and distribution of the material are achieved. Compared with a traditional process, the preparation period is greatly shortened, the product purity and the reaction efficiency are improved, and the method is suitable for industrial continuous production and has remarkable economic benefits and social benefits.

The invention relates to the technical field of slope ecological restoration, in particular to a rock-soil slope ecological restoration method. The method comprises the following steps: (1) slope surface finishing; (2) laying a wire mesh; (3) preparing a base material; (4) spraying a base material; and (5) vegetation spraying. The prepared base material can promote plant growth and development, is high in anti-scouring capacity, effectively improves the water and soil conservation effect, promotes rapid recovery of natural slope green vegetation and is suitable for rock-soil slopes.