31results about How to "Favorable for biological treatment" patented technology

A method for treating biochemical sludge or poultry and livestock manure by using earthworm belongs to the technical field of earthworm reaction. The method comprises the steps of collecting biochemical sludge or poultry and livestock manure, and adding brown sugar, effective microorganisms (EM) and urea into the biochemical sludge or poultry and livestock manure; transporting the treated biochemical sludge or poultry and livestock manure from the first step to earthworm bed ton bags, and arranging the earthworm bed ton bags on the floor; putting earthworm fry including artificially-fed earthworms and wild earthworms in the earthworm bed ton bags; holding the temperature and humidity of the earthworm bed ton bags; separating the earthworms from the manure treated by using the earthworms; and using the treated manure for planting lawn, sward and raising matrix and greening landscape. The treated manure by the invention meets the standard of organic fertilizer by detection in center for quality supervision and test of fertilizer under the ministry of agriculture.

The invention discloses a device for physico-chemical-biochemical combined treatment of old-aged landfill leachate. The device comprises a leachate tank, a water pump, a water distributor, a mineralized waste reaction bed, a ventilation pipe and a collection pipe, wherein the leachate tank is connected with the water pump, the water distributor is arranged at a water outlet of the water pump, the mineralized waste reaction bed is placed below the water distributor, and the mineralized waste reaction bed is sequentially provided with a uniform water distribution layer, an iron scrap layer, a zeolite layer, a water collection layer, a mineralized waste layer and a supporting layer from top to bottom. The device disclosed by the invention can reduce the loading of organic matters, improve the biochemistry of the old-aged landfill leachate and be conductive to the follow-up biological treatment by utilizing the physico-chemical action of the iron scrap-zeolite layer against the old-aged landfill leachate; mineralized waste is utilized to perform biochemical treatment on the old-aged landfill leachate, so that the removal rate of COD (chemical oxygen demand), BOD5 (biochemical oxygen demand 5), ammonia nitrogen, total nitrogen and total phosphorus is high, and the emission standard can be achieved; the device disclosed by the invention can realize resource utilization of the mineralized waste, no secondary pollution and great economic benefits, social benefits and ecological benefits.

The invention discloses a pretreatment tank for sewage treatment in which an explosive balloon moves repeatedly along a horizontal plane, comprising a tank body, a drainage pipe and a filter box. The lower end of the right side wall of the tank body is fixedly connected with a drainage pipe, and the left side of the tank body is A filter box is fixedly connected to the side, a water inlet pipe is fixedly connected to the rear side wall of the filter box, and a water delivery pipe is welded to the lower end of the filter box, and a blanking plate is hinged on the inner side wall of the lower end of the filter box, and the filter box is A first hydraulic rod is fixedly connected to the right side wall of the lower end of the tank, and the upper ends of the front and rear side walls of the pool body are snap-connected with a movable frame, and the inner side of the movable frame is slidably connected with a telescopic plate. The pretreatment tank for sewage treatment in which the explosive ball moves repeatedly along the horizontal plane is convenient for multiple filtration treatment of impurities in the sewage, and it is convenient to clean the filtered impurities, which improves the practicability of the pretreatment tank. Repeated movement along the horizontal plane improves the biological treatment efficiency.

The invention discloses an early-stage sorting device for kitchen garbage. The early-stage sorting device comprises a sorting device and a wiping and conveying device, wherein the sorting device comprises a material inlet, an inner layer screening barrel, an outer layer screening barrel, a separation motor, an oil and water outlet, a coarse material outlet and a fine material outlet; the wiping and conveying device is provided with a conveying tube; an input end of the conveying tube is connected with a fine material outlet; an output end of the conveying tube is connected with a biologic treatment instrument; the conveying tube is tapered, and the diameter of the output end of the conveying tube is less than that of the input end; and a spiral rod driven by a motor to rotate is arranged in the conveying tube. The sorting device can effectively sort inorganic garage and sort oil and water at the same time, and the wiping and conveying device controls the moisture content of the materials entering the biologic treatment instrument, so that later-stage biologic treatment is facilitated.

The invention provides a method for separating and purifying salts in the 2,4,5-triamino-6-hydroxy pyrimidine sulfate production process. The method comprises the following steps that: guanidine nitrate, ethyl cyanoacetate and sodium methoxide serving as raw materials are subjected to a condensation reaction to generate condensate 2,4-diamino-6-hydroxypyrimidine, methanol and sodium nitrate; the condensate 2,4-diamino-6-hydroxypyrimidine, sodium nitrate and sulfuric acid serving as raw materials are subjected to a nitrosation reaction to generate a nitrosified substance 2,4-diamino-5-nitroso-6-hydroxypyrimidine, sodium sulfate and water. According to the method, firstly, after the condensation reaction, sodium nitrate is separated, and purification is carried out; then, sodium sulfate is separated in the nitrosation reaction, and purification is carried out; and byproducts of industrial sodium nitrate and industrial sodium sulfate meeting the national standard are reclaimed, so that hazard waste output is eliminated, wastewater drainage is reduced, salt content in wastewater is reduced, and process wastewater biological treatment is benefited.

The invention discloses a device for synchronously neutralizing and heating low-temperature acidic waste water, which comprises a neutralization water tank (1), a waste water inlet pipe (9) and a waste water outlet pipe (7), a mixed stirring tank (2) which takes a tank body as a heat conduction material is provided in the neutralization water tank (1); a stirring paddle (3) is provided in the mixed stirring tank (2), a communicating pipe (5) which is communicated with the neutralization water tank (1) is provided at the upper part of the mixed stirring tank (2), a non return valve (6) is provided in the communicating pipe (5), a lime inlet pipe (8) is provided at the upper part of the mixed stirring tank (2), a deposition drain tube (4) is provided at the bottom of the mixed stirring tank(2), the waste water inlet pipe (9) is respectively communicated with the neutralization water tank (1) and the mixed stirring tank (2); the waste water outlet pipe (7) is arranged on the upper part of the neutralization water tank (1). According to the invention, waste water can be heated by using waste heat to achieve the purposes of treating waste by waste and energy saving as well as consumption reduction.