广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
17期
104-105
,共2页
模拟酸雨%掺杂污泥焚烧灰渣%路面砖%重金属
模擬痠雨%摻雜汙泥焚燒灰渣%路麵磚%重金屬
모의산우%참잡오니분소회사%로면전%중금속
simulated acid rain%municipal sludge waste incineration lime - ash%bricks%heavy metal
用不同pH的模拟酸雨浸泡掺杂污泥焚烧灰渣自制的混凝土路面砖,探讨了相同浸泡时间时,模拟酸雨pH对自制路面砖中重金属浸出的影响。结果表明,在相同浸泡时间时,铬、锰、铜、铁的浸出浓度都随着模拟酸雨pH的增大而下降。在pH为4.4的模拟酸雨中,浸泡时间大于8小时后,铬、锰、铜、铁浸出浓度的大小关系是铬〉锰〉铜〉铁。而镉、镍、铅的浸出浓度在各种模拟酸雨中都小于0.1 ppb。
用不同pH的模擬痠雨浸泡摻雜汙泥焚燒灰渣自製的混凝土路麵磚,探討瞭相同浸泡時間時,模擬痠雨pH對自製路麵磚中重金屬浸齣的影響。結果錶明,在相同浸泡時間時,鉻、錳、銅、鐵的浸齣濃度都隨著模擬痠雨pH的增大而下降。在pH為4.4的模擬痠雨中,浸泡時間大于8小時後,鉻、錳、銅、鐵浸齣濃度的大小關繫是鉻〉錳〉銅〉鐵。而鎘、鎳、鉛的浸齣濃度在各種模擬痠雨中都小于0.1 ppb。
용불동pH적모의산우침포참잡오니분소회사자제적혼응토로면전,탐토료상동침포시간시,모의산우pH대자제로면전중중금속침출적영향。결과표명,재상동침포시간시,락、맹、동、철적침출농도도수착모의산우pH적증대이하강。재pH위4.4적모의산우중,침포시간대우8소시후,락、맹、동、철침출농도적대소관계시락〉맹〉동〉철。이력、얼、연적침출농도재각충모의산우중도소우0.1 ppb。
Bricks made in ted acid rain. Effect of soaking municipal sludge waste incineration （MSWI） lime - ash were soaked in kinks of simulatime of brick and pH of simulated acid rain on the leaching behavior of heavy metals from the bricks was investigated. Results showed that under the same dip in times, the total leaching concentration of 4 kinds of heavy metals was Cr, Mn, Cu and Fe, with the simulated acid rain pH accretion and drop. At the pH 4.4 of simulated acid rain, the order to leaching concentration of 4 kinds of heavy metals was Cr 〉 Mn 〉 Cu 〉 Fe, after 8 h dip in times. The total leaching concentration of Cd, Ni and Cu was lower than 0. 1 ppb, at the kinks of simulated acid rain.
