The recurrence of marble processing waste slurry using technology

Foreign marble processing technology has reached a certain level, but the marble will produce a large number of marble processing waste. According to different processing methods, marble processing waste slurry accounted for by 20-30% the weight of marble blocks.

    Abuja areas such as Italy that will produce 2,000 tons per day waste slurry; Italy Verona marble business area only 68 the year 1997 to discharge the waste slurry processing 24 million tons of marble. 50% of marble waste slurry water, the remaining marble powder. Travertine, manufacturers will waste slurry filtration, separation of the solid water, then dried solids to the converter. Although manufactured marble does not produce pollution, but there will be a waste slurry emissions. The waste slurry discharged into the rivers, the accumulation of filtered solids for a long time to be processed on a marble factory site will have a negative environmental problems.

    Therefore, in order to solve this problem, the foreign use of marble waste slurry, the development of a variety of purposes, respectively, are introduced as follows:

    Production of cement products used in construction

    Size according to chemical composition (50% less than 0.01mm), the granite waste content of the coating is soft limemarble is limemarble and clay content of the amount of soft clay classes, and thus has great potential for the construction industry. Nissan 600M3 waste slurry for enterprises, will naturally dry waste slurry into powder and then sieve with a pore size of 1mm Slate. Shake blender, put the waste pulp powder, 425 blue wave properties of cement, sand rheological agent, water 600KG, waste slurry with the 23kg, the production of cement products of its mechanical strength, appearance, processability can meet the requirements. Cut waste slurry of iron (steel grit crushed) will not cause rust problem, because the amount of corrosion inhibitor has been added. In this way, there will be a granite sawing waste slurry useless. marble for the production of fired brick waste slurry

    By studying the chemical composition of granite waste slurry and found that despite the different materials, clay materials with a strong affinity. Italy UNIECO brick tile production equipment, equipment companies, the company will waste slurry with different percentages of clay mixed test, the results of qualified products. 40% of the waste slurry added to the problem does not occur. Brick with marble waste pulp production, waste slurry only after filtration can be, without having to do with dry good.

    Marble processing waste slurry using

    Produce white Carrara marble processing waste slurry Mosaic, containing calcium carbonate; and colored marble waste slurry containing calcium carbonate, in addition, it also contains iron, magnesium, manganese and other oxides. As the processing of marble without the use of polluting additives, therefore, can be viewed as a marble powder is almost pure chemical products, industrial and other fields can be used.
 
    Marble powder instead of soda ash for recycling of lead batteries

    Over the years, a number of specialized factories to do with soda ash recycle solvent lead. Italian company is now using the sawing of marble powder marble slurry waste instead of soda. This advantages: lower production costs will be waste into new production processes. Calcium carbonate and other additives, ingredients (silica sand, iron, carbon, batteries lead compounds, sulfate oxide) mixed with lead to the recovery of batteries, while producing a kind of waste, this waste contains calcium oxide, silicate, iron oxide and metallic iron, and 2-3% lead.

    Recovery time before the students used soda ash to toxic waste sites can not use feces, waste slurry is due to incorporation of marble, its does not prevent the waste of lime and cement, sand pool, which can be fully utilized. For example, do use the washing machine drum stable briquettes, because the waste contains 50% iron, heavy. Italy has a factory of 800 tons stone month recycling of lead batteries, consumed 150 tons of marble powder, while the daily production of 2000 tons of such waste.

    Marble to do except the acid waste slurry

    Save the world and to study the problem of acid rain. Acid rain pollution sources are many, but mainly from burning coal and sent material. Smoke to a power station combustion emissions sources can not be ignored. Has been manufactured using limemarble to remove sulfur dioxide dry or wet equipment. Italian ENEL by dry the calcium carbonate (marble waste slurry) and sulfur dioxide, calcium sulfate or gypsum reaction can be used for the construction industry. This pulp can be used a lot of marble nonsense, but also clean the environment.

    Experts plan to very fine calcium carbonate powder into the Great Lakes contaminated the most powerful of the world - ORTA lake water to remove acid. Calcium carbonate powder size less than 0.1mm, the amount of at least 30% less than 0.02mm. The marble factory waste slurry is consistent with this requirement, because the marble, including marble waste slurry 60% solids in powder particle size less than 0.01mm.

    The application of agricultural waste slurry marble

    According to foreign studies, one hectare of land requires 100 tons of marble powder to be slightly acidic soil PH value becomes close to the value of value. Soil acidity is too high, benefits of magnesium, boron and plant pro, but it will cause aluminum, copper, zinc poisoning phenomenon. marble plant using waste slurry, that is, change the soil with calcium carbonate in terms of Italy has some experience. Such as Italy, a wine market, marble processing waste slurry using the soil of the powder of marble, and then flow into rivers and lakes, rivers and lakes to prevent acidification.

    Use of granite sawing waste slurry

    From the chemical point of view, generally agreed that there is no pollution of the granite waste slurry, the only problem caused by large accumulation of waste slurry handling. General granite sawing waste slurry composition: Silicon average of 60%, an average of 10% aluminum, iron, magnesium, chromium, manganese and other ingredients. Accounted for 4-5% calcium oxide, while the pollution elements (aluminum, zinc, chromium) in limited quantities. Lime on the need to clear away empty field if the deal with cutting waste slurry after filtration, this waste slurry will change significantly, because the carbonic acid gas carbonic anhydrase of the lime into calcium carbonate, which becomes more viscous waste slurry , dense. Also produce waste slurry polishing granite, this granite processing waste slurry generally only 8% of all the waste slurry. But this cutting waste slurry waste slurry must be separated, because the polished granite will use aluminum, tin, metal lead. The waste slurry possible existence of heavy metals such as lead, will dissolve in water, harm is very great.

    The use of marble powder, has no problem, because it has the widespread use of a chemical product. Extracted from the marble calcium carbonate, in addition to the above-mentioned purposes, can also be used to synthesize plastic, waterproof felt, water-based coating or other chemical industry products. Granite marble waste slurry for use in the past unthinkable things, in addition to the development and utilization, the waste slurry is obtained from the granite products similar products, you can also do asphalt aggregate, mud, or for the construction industry; present, is actively develop the use of marble waste slurry to other industries.