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METHOD FOR RECLAMATION OF CONTAMINATED LANDS AND WASTE DUMPS

机译:回收污染土地和废物垃圾的方法

摘要

FIELD: removal and processing of solid wastes.;SUBSTANCE: invention relates to the field of environmental technologies, in particular to reclamation of lands containing toxic wastes in places of their location, including solid domestic wastes and industrial wastes. Method involves coating in series with protective layers consisting of a clay mineral, a polyacrylamide polymer with further tilling of the surface with sowing of grasses. Wastes are laid in waste. First, lower protective layer of substrate is placed from a mixture of: bentonite with 2–5 wt. % of polyacrylamide polymer, natural sand and water in ratio, wt. %: bentonite:sand:water = (10–15):(75–80):10 with thickness of up to 1 m with subsequent rolling of said mixture to thickness of 30–40 cm and applying, on top of layer of substrate, layer from overburden of sand extraction pit with thickness of up to 20 cm with tilling surface by sowing perennial grasses in following ratio, wt. %: meadow fescue - 40, wheat grass - 40, red clover - 20.;EFFECT: method provides reclamation of contaminated lands and dumps of toxic wastes and restoration of vegetation and soil cover on contaminated sites to obtain a stable protective waterproof coating in the form of a substrate of natural materials and a fertile layer of man-made non-toxic materials using a grass mixture, which ensures high productivity when used during reclamation.;1 cl, 1 tbl
机译:现场:去除和加工固体废物。物质:发明涉及环境技术领域,特别是在其位置的地方含有有毒废物的土地,包括扎实的家庭废物和工业废物。方法涉及与由粘土矿物组成的保护层串联涂覆,该聚丙烯酰胺聚合物具有进一步耕作表面的耕作。废物铺存废物。首先,将较低的保护层的基材从2-5wt的混合物中置于:膨润土的混合物。聚丙烯酰胺聚合物的%,自然砂和水的比例,wt。 %:膨润土:砂:砂=(10-15):( 75-80):( 75-80):厚度可达1μm,随后滚动所述混合物厚度为30-40cm,施加在基材层顶部,通过厚度高达20厘米的沙子萃取坑的层,通过播种多年生草,沿着以下比例,wt。 %:草地上的FESCUE - 40,小麦草 - 40,红三叶草 - 20。效果:方法提供污染的土地和污染物丢失的撕裂和植被和土壤覆盖的污染部位,以获得稳定的防水涂层。使用草混合物的天然材料底物和人造无毒材料的肥沃层,这确保了在填海过程中使用时的高生产率。; 1 Cl,1 Tbl

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