Font Size: a A A

Research On Reclaiming Properties And Improvement Measures Of Coal Wastes Weathering

Posted on:2006-09-04Degree:MasterType:Thesis
Country:ChinaCandidate:L P AnFull Text:PDF
GTID:2121360155457194Subject:Soil and Water Conservation and Desertification Control
Abstract/Summary:PDF Full Text Request
Coal wastes mountain in our country farming and forestry is at the moment reclaimed and is utilized again chiefly is covering earth to grow , What is confronted to cover earth to grow badly needed such as the earth source , transportation hardship , reveal during the earth of expense expansively with covers is grown the earth is harden , organic character lack , thorough the quality worse and soil fertility limit and so on the problem .The amendment step is reclaimed by the coal waste decency matters that land occupation condition on our country coal waste mountain was probed the more suitable kind again .The useful references of closing supplying shall be reclaimed again to the coal waste mountain .This is tested through coal waste decency matter water content researching to start off , the experiment evaporate by means of the field , the experiment is evaporated in the outside , the osmosis of interior is tested, selecting out some relatively feasible in the coal waste decency matters initially reclaims the amendment step again , moreover means in the way of the grown in a pot experiment , by means of the living beings target an earth type alternation situation ought to be demonstrated further with grows , obtaining the more splendid coal waste decency matters that in view of the coal covers earth 5cm on the waste reclaims the amendment step again .Not rigidly adhere to the coal waste on the cover in the experiment anticipates to reclaim" the limit which grown again , by means of evaporates the research that the osmosis awaited to coal waste decency matter water content , the distinguishing feature seeing in view of the coal waste decency matters , bold the adopting coal waste blendes against the distinct proportions of loess , means that the coal waste blendes against the distinct proportions of coal ash , thereby the great pellet aim attain to fill in the coal waste decency matters , causing the coal waste decency matters reclaim the amendment step again still more suitable kind of quality .The conclusions below can be obtained by the experiment:Coal wastes and coal ash blend to possess the soy bean flora to come out the growth , the coal waste decency matter amendment steps can be done worthwhile , yet is limited to this experiment time the limit does not find the optimum proportion , then may confirm that coal which fixed waste together with coal ash are tested to things 2:1, 3:1, 4:1. Not pertaining to this is tested the demand and opposites to each other that the coal covers earth still more some proportions on the waste , yet realizes at least in case in the way of coal ash amendment coal waste decency matters kind character property , lift coal waste decency matters suitable kind of quality , the coal ash blending proportion should over 1/3.This is tested in four serious of handles which fixed , with coal waste together with loess 2:1, Biomass is the largest test , Whether or being the rate of emergence , Survival rate , It is stem tall , It is piece elder , Path , The living beings targets such as growth index number and so on wholly are more than the comparison coal to be covered earth 5cm on the waste to handle , put in order is living first ;Coal waste together with loess , Coal ash 4:1:1. Also being more than the comparison coal covers the handle of earth 5cm on the waste to put in order being living second ;Yet every the handle water content situation is see through grows about , Coal waste together with loess , Coal ash 4:1:1. Guarantor's ability in swimming is in good health to coal waste together with loess 2:1; In immediate future this obtains two handles more splendid therefore being tested: Coal waste together with loess 2:1. And coal waste together with loess , Coal ash 4:1:1.
Keywords/Search Tags:coal wastes weathering, reclaimation properties, improvement measures
PDF Full Text Request
Related items