57results about How to "Promote harmlessness" patented technology

The invention relates to the field of environmental protection building materials, and specifically discloses a non-burning antique green brick based on construction waste tailings and its preparation method and application. As well as water as raw materials, the unfired antique green bricks prepared by chemical modification have high strength, excellent water resistance and aging resistance, and the high-density hydraulic forming method greatly improves the density of building materials, which can Promote the harmless and efficient utilization of construction waste tailings. The preparation method provided by the invention is simple, and the prepared building materials have the advantages of low production cost, high block strength, good physical waterproof effect, long service life, etc. At the same time, it solves the problem that most of the tailings of construction waste are disposed of through landfill in the prior art, which is easy to cause pollution to the environment, and has a broad market prospect.

The invention discloses a heating system of a garbage storage pit. The heating system comprises a primary air inlet system, an upper heating device, a bottom heating device and a storage pit internal heating device, wherein the upper heating device is used for heating air of the primary air inlet system; the primary air inlet system is used for feeding air heated by the heating device into the garbage storage pit; the bottom heating device surrounds the bottom of the garbage storage pit, and is used for heating the bottom of the garbage storage pit; and the storage pit internal heating device is used for heating garbage in the storage pit. According to the heating system, the top and the bottom of a garbage stacking surface are heated at the same time, so that the temperature of the garbage storage pit is effectively increased, fermentation and dehydration of garbage are facilitated, the calorific value of garbage fed into an incinerator is increased, and combustion of the incinerator is more stable; and besides, the temperature in the garbage storage pit is increased through fully utilizing hot water generated from a waste heat utilization system of hot air at the upper part of an incineration bridge and industrial circulating water, so that the primary air inlet temperature is increased, and the heat efficiency of the incinerator is improved.

The invention discloses a sludge treatment agent, which includes a treatment agent A and a treatment agent B. The sludge treatment agent uses potato peels to prepare the treatment agents A and B to treat sludge and reduce the water content of sludge and harmful components in sludge; the addition of sludge treatment agent A can greatly kill bacteria in sludge and reduce the water content of sludge; the addition of treatment agent B can stabilize heavy metals in sludge and weaken the environment of heavy metals toxicity, and can also promote the release of bound water in the sludge, so that the water content of the sludge is significantly reduced; the production process of the present invention is simple and easy to operate, the raw materials are simple and easy to obtain, and the production cost is low, and the sludge treatment agent is prepared by making full use of domestic waste , to achieve the purpose of treating waste with waste; the invention can significantly improve the dehydration performance of sludge, and can greatly reduce the environmental toxicity of sludge, improve the feasibility of subsequent treatment and disposal of sludge, and provide comprehensive utilization of sludge Foundation.

The invention discloses a method for producing a long-acting soil conditioning agent by using potassium feldspar and organic waste. Potassium feldspar, limestone, aid and coal are used as raw materials in the method. The method comprises the following steps of: roasting the crushed raw materials in a rotary kiln by adding the coal, and cooling and milling the roasted raw materials; and mixing the powder and the organic waste such as animal excrement in a farm and the like, performing anaerobic and aerobic continuous fermentation step by step, performing partial dehydration, and thus obtaining a finished product. The produced long-acting soil conditioning agent contains a certain amount of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, soluble silicon, humic acid and the like, so the soil conditioning agent can effectively improve the soil and provides nutritional components for crops for long time. The soil conditioning agent can be directly applied, and can also be applied with chemical fertilizers. According to the method for producing the long-acting soil conditioning agent by using the potassium feldspar and the organic waste, the production raw materials are mineral in the nature and waste in the farm, the raw materials are extremely rich and cheap, and the production process is energy-saving and environment-friendly.