33results about How to "Solve ecological and environmental problems" patented technology

The invention discloses a preparation method for waste carboxyl nitrile gelatine powder and PVC blend. The preparation method comprises the following steps that: plasticizer, heat stabilizer and PVC mixture are added in a double-roller feed mill to carry out preplasticizing, and then initiator, modifier and crushed waste carboxyl nitrile gelatine powder are added in turn to carry out milling; then, after stem pressing is completed inside a flat vulcanizing machine, a test block is quickly moved to a chilling press and demoulding is carried out after the test block is cooled down to room temperature, thereby obtaining the waste carboxyl nitrile gelatine powder/PVC blend. The blend not only has substantially increased impact strength and elongation at break, but also has a compact microstructure; moreover, the blend has wide application, simple manufacturing process, low cost and less environmental pollution.

The invention belongs to the field of filling cementing material preparation and particularly relates to a copper slag-base low silicon iron tailing filling material. The filling cementing material is prepared from 15-25wt% of copper slag materials, 3-8wt% of cement clinker, 0.3-0.8wt% of sodium hydroxide and 70-80wt% of low silicon iron tailings. The copper slag materials are prepared from 75-80wt% of copper slag, 3-6wt% of lime, 15-18wt% of gypsum and 0.3-0.8wt% of naphthalene water reducer. The filling cement material is prepared through the copper slag and the low silicon iron tailings, the local ecological environment problems and slag waste problems of mines are solved, and manpower and material resources can be greatly saved. The cost is low, the equipment investment is small, the filling effect is good, and the copper slag-base low silicon iron tailing filling material has wide application prospects in the fields of mine backfilling, building materials and others.

The invention discloses an ore prospecting method for a carbonate rock type lead-zinc deposit. The ore prospecting method comprises the steps of: field screening, indoor screening, rare earth geochemical index and carbon-oxygen isotope geochemical index recognition, ore prospecting geochemical index system establishment, abnormal graph drawing to guide ore prospecting and the like. The method canbe used for rapidly guiding prospecting prediction of carbonate rock type lead-zinc ore deposit to improve the prospecting efficiency, also can be used for judging the ore-forming fluid migration pathof the carbonate rock type lead-zinc deposit and indicating a prospecting direction, and has very high application and popularization value. According to the method, the problems of long period, highinvestment and high risk in the existing exploration technology are solved, the economical efficiency and high efficiency of carbonate rock type lead-zinc deposit potential evaluation and ore right decision are realized, meanwhile, the method is also one of the important ways for realizing green exploration, and the ecological environment problem possibly caused in the implementation process of the traditional exploration technology is solved.

The invention discloses an ore prospecting method for a Carlin type gold deposit. The ore prospecting method comprises the steps of: field screening, indoor screening, rare earth geochemical index andcarbon-oxygen isotope geochemical index recognition, ore prospecting geochemical index system establishment, abnormal graph drawing to guide ore prospecting and the like. The method can be used for rapidly guiding Carlin-type gold deposit prospecting prediction, improves the prospecting efficiency, also can be used for judging the ore-forming fluid migration path of Carlin-type gold deposit and indicating a prospecting direction, has very high popularization and application value, solves the problems of long period, high investment and high risk of existing exploration technology, realizes the economical efficiency and high efficiency of Carlin-type gold deposit potential evaluation and ore right decision, is also one of important ways for realizing green exploration, and solves the ecological environment problem possibly caused in the traditional exploration technology implementation process.

A method of preparing an organic fertilizer and making paper from beanstalk fibers. The invention aims to produce an environment-friendly multifunctional sand-fixing and soil-retaining organic fertilizer with co-production of paper, wherein no pollutant is discharged during the production process. The method includes following steps: (1) cutting beanstalk into short sections and putting the short beanstalk sections in a steam-boiling reaction pot; (2) mixing ammonium bicarbonate, potassium acetate and calcium oxide according to proportions and adding the mixture into a liquid storage pot; (3) adding hot water at about 80 DEG C with stirring for about 45 min and adding the stirred mixture into the steam-boiling reaction pot to mix the mixture with the steam-boiling reaction pot; (4) feeding steam, performing a steam-boiling reaction under a high-temperature and high-pressure condition for about 2.5 h to obtain a brown slurry mixture; (5) with a triple-way pulp extruding machine, performing a filter-pressing process to separate the brown slurry mixture to obtain paper pulp and a black liquid, wherein the paper pulp is used for blanching and papermaking and the black liquid is used for prepared the organic fertilizer through solidification; (6) during the solidification for preparing the organic fertilizer, concentrating the black liquid into a concentrated black liquid through an external-flow free falling film plate-type evaporator; and (7) feeding the concentrated black liquid into a spray drying column to dry and solidify the concentrated black liquid into powder.

A preparation method of a diatomite tailing thermal insulation coating relates to a tailing high-value utilization method, and comprises the following preparation processes of: uniformly dispersing a dispersant and an inorganic binder in water, adding a suspending agent, adding the solution into diatomite tailings, an auxiliary aggregate, a thermal insulation filler and a reinforcing agent which are proportioned and mixing well, adding water and mixing to obtain paste and/or slurry, and packaging the paste and/or slurry to obtain the diatomite tailing thermal insulation coating. The invention provides a method for effectively treating diatomite tailings, and a new technical scheme is provided for treating diatomite tailings. According to the invention, the tailings are fully utilized, so that the ecological environment problem caused by tailings heap can be overcome, the tailings are turned into wealth, meanwhile, direct economic benefits can be brought, and the social benefits are significant.