地下水
地下水
지하수
GROUNDWATER
2014年
4期
118-120
,共3页
非卫生垃圾填埋场%环境污染%渗漏量%污染物迁移
非衛生垃圾填埋場%環境汙染%滲漏量%汙染物遷移
비위생랄급전매장%배경오염%삼루량%오염물천이
Unqualified landfill%environmental pollution%leak amount%contaminant movement
针对非卫生垃圾填埋场环境污染问题,以某垃圾填埋场为例,通过 WHI UnSat Suite软件 HELP模块计算不同填埋条件下渗滤液渗漏量。利用GMS模拟了该垃圾场中心抽水条件下污染物迁移变化规律。结果表明,简单地表防渗条件下,渗滤液渗漏量为现状条件下的50%,增铺 HDPE土工膜后,渗漏量可减少99%。卫生填埋渗滤液仅为现状条件下的3.6×10-3倍。当抽水量为2000 m3/d时,Cl-浓度呈明显下降趋势,由84 mg/L降至80.1 mg/L。
針對非衛生垃圾填埋場環境汙染問題,以某垃圾填埋場為例,通過 WHI UnSat Suite軟件 HELP模塊計算不同填埋條件下滲濾液滲漏量。利用GMS模擬瞭該垃圾場中心抽水條件下汙染物遷移變化規律。結果錶明,簡單地錶防滲條件下,滲濾液滲漏量為現狀條件下的50%,增鋪 HDPE土工膜後,滲漏量可減少99%。衛生填埋滲濾液僅為現狀條件下的3.6×10-3倍。噹抽水量為2000 m3/d時,Cl-濃度呈明顯下降趨勢,由84 mg/L降至80.1 mg/L。
침대비위생랄급전매장배경오염문제,이모랄급전매장위례,통과 WHI UnSat Suite연건 HELP모괴계산불동전매조건하삼려액삼루량。이용GMS모의료해랄급장중심추수조건하오염물천이변화규률。결과표명,간단지표방삼조건하,삼려액삼루량위현상조건하적50%,증포 HDPE토공막후,삼루량가감소99%。위생전매삼려액부위현상조건하적3.6×10-3배。당추수량위2000 m3/d시,Cl-농도정명현하강추세,유84 mg/L강지80.1 mg/L。
To phase down leachate pollution in unqualified landfills, the paper calculates leak amount of leachate in differ-ent buried conditions by using HELP part of WHI UnSat Suite software. According to the calculation, the movement of contam-inant when the landfill center pumping is simulated with the knowledge of GMS. Results show that the leachate leak amount of landfill with simple surface seepage is only half of it in landfill with no seepage. Moreover, in a landfill covered with HDPE geomembrane, the leak amount decreases 99 percent, which equals to 3. 6 × 10 -3 times of it with no filtration. Under this condition, Cl- content decreases from 84 mg/L to 80. 1 mg/L when the water pumping amount is 2 000 m3/d.
