41results about How to "To achieve the effect of emission reduction" patented technology

The invention discloses a process of jointly producing melamine and ammonium bicarbonate with limekiln gas. The tail gas from limestone calcining is collected and then is washed, purified, lowered in temperarure, dedusted by static electricity, pressurized and cooled, and stronger ammonia water which is prepared by the tail gas of the melamine reacts with the tail gas from the limestone calciningin a carbonizing tower to synthesize the ammonium bicarbonate. The process produces the ammonium bicarbonate with high additional value by using the low-cost lime kiln tail gas. In addition, the process can jointly produce the melamine and the ammonium bicarbonate, thereby increasing the enterprise income, treating the tail gas from the lime production and reducing the emission of CO2.

The invention relates to a device and method for coating a normal-temperature metal ion flash smelting surface. The device comprises a power supply system, a control system, a high-speed transmission line system, a high-speed electric arc system and a compressed air supply system, wherein the control system is a microcomputer control part of the surface coating device, connected with the power supply system and used for integrating work operation control of the surface coating device; the high-speed transmission line system is connected with the control system and used for conveying a metal ion wire rod; the high-frequency electric arc system is connected with the high-speed transmission line system and used for conveying metal ion wire rod high-frequency electric arc into one or more mixed ion liquefied metal objects; and the compressed air supply system is connected with the high-frequency electric arc system and used for conveying the ion liquefied metal object to a smelting spray gun in a flash manner and spraying the ion liquefied metal object subjected to effective adjustment to the surface of a coated object in a flash manner. The device has a compact structure through finematching of all assemblies and really achieves the effects of environment protection, energy saving, consumption reduction, emission reduction and the like; and the utilization rate of equipment energy sources is very high and generally reaches 85 percent by applying a normal temperature technology.

The invention relates to a method for fast removing algae or inhibiting the growth of algae and in particular relates to a method for killing Microcystis aeruginosa or controlling the growth of Microcystis aeruginosa. The method comprises the following steps: regulating the pH value of an algae-containing water body to be treated to be more than 12.0 or less than 5.0, and performing illumination treatment; measuring the absorbance so as to detect the algae-removing effect, wherein the result shows that when the pH value is more than 12.0 or less than 5.0, the optical density (OD) value is still 0.05 after 18 days and Microcystins can not grow basically; and measuring the pH value of the treated water body, wherein the result shows that the pH value of the solution is 8.9 after 18 days in the alkaline environment. In practical applications, the alkaline condition of the water body is utilized to remove the algae, the pH value of the water body can not change largely, the dosage of other chemical reagents and the yield of sludge can be reduced and the method has a wider application prospect. The algae-removing method has the advantages of low cost, simplicity in operation and no secondary pollution.