4results about How to "Avoid Pollution Hazards" patented technology

The invention discloses a pickled pepper preparation method, and belongs to the technical field of food processing.The method comprises the steps that fresh peppers are prepared; saline water recovery and classification: the recovered saline water is divided into strain source saline water and to-be-regenerated saline water according to flavor evaluation; solid microbial inoculum preparation: freeze drying and encapsulation embedding are performed on the strain source saline water, and a solid encapsulated microbial inoculum is prepared; regenerating the saline water, namely carrying out rough filtration and fine filtration on the saline water to be regenerated so as to remove substances of which the molecular weight is greater than 80 and less than 2000 Daltons; and preparing a fermentation starting liquid and fermenting. Through fine grading of saline water and functional preparation of the microbial inoculum, standardization and flavor stability of pickled pepper production are realized, and the problems of flavor degradation and batch instability caused by saline water circulation in a traditional process are fundamentally solved.

The utility model belongs to the technical field of water pressure control for water treatment, and particularly relates to a constant-pressure water replenishing device for water treatment, which comprises a water tank, a water inlet, a water outlet and a drain outlet are arranged on the side wall of the water tank, an ultrasonic cleaner and a controller are connected to the middle of the outer side wall of the water tank, and a water replenishing and descaling component is arranged at the top end inside the water tank. The water supplementing and descaling assembly comprises an air cylinder on the top, a connecting rod connected with a telescopic rod of the air cylinder and a buoyancy detection device at the lower end of the connecting rod, the side wall of the connecting rod is connected with a brush, the buoyancy detection device is provided with a floating block, a sliding groove is formed in the inner bottom of the buoyancy detection device, and a second pressure sensor is arranged at the upper end of the sliding groove. And a first pressure sensor is arranged at the lower end. Through signal conduction of the pressure sensor, linkage of all parts by the controller and mechanical-electrical integration design, cooperative operation of constant-pressure water replenishing and efficient descaling is achieved.

This invention proposes a fully biodegradable mulch film suitable for extreme high-altitude environments and its preparation method, comprising at least one three-layer composite film consisting of an outer layer, a middle layer, and an inner layer; the outer layer is an ultraviolet protective layer, the middle layer is a water vapor barrier layer, and the inner layer is a heat-insulating and protective layer. The mulch film of this invention is a fully biodegradable multilayer co-extruded agricultural mulch film integrating "super weather resistance, high barrier moisture retention, intelligent thermal management, and prevention of additive migration," thereby overcoming the shortcomings of existing mulch films in applications in extreme high-altitude environments.

The present application relates to waste circuit board resource utilization and flue gas treatment technical field, disclose a kind of method and system for recovering bromine from bromine flame retardant waste circuit board smelting flue gas, the method includes oxygen-rich molten pool smelting, flue gas cooling, bag dust collection and bromine ion leaching, double-stage gradient absorption, bromine salt solution pretreatment, preheating oxidation, distillation condensation separation, finished product separation and reflux eight steps;System includes molten pool smelting unit, flue gas cooling unit, bag dust collection and leaching unit, double-stage gradient absorption unit, pretreatment unit, preheating oxidation unit, distillation condensation unit, separation reflux unit;The present application realizes the efficient release of bromine element by oxygen-rich smelting, combined with gradient cooling, double-stage absorption, molecular distillation and other processes, high-purity recovery of bromine is realized, and the purity of finished product bromine is ≥99.5%;While using waste heat boiler to recover flue gas heat, provide heat source for distillation process, reduce energy consumption.