聲(sheng)源(yuan)可以是(shi)單個(ge)(ge)，也(ye)可以是(shi)多(duo)(duo)個(ge)(ge)同時(shi)作用;傳播途徑也(ye)常不只一條(tiao)，且非固定不變;受主可能(neng)是(shi)人，也(ye)可能(neng)是(shi)若(ruo)干靈(ling)敏設備，對噪(zao)(zao)聲(sheng)的(de)反應也(ye)各不相(xiang)同。噪(zao)(zao)聲(sheng)一部(bu)分直接傳播到(dao)人耳，稱為直達聲(sheng)；大部(bu)分的(de)聲(sheng)能(neng)通(tong)過室內的(de)各個(ge)(ge)界面多(duo)(duo)次反射(she)后傳播到(dao)達人耳，稱為混(hun)響聲(sheng)。根據現場(chang)測量出的(de)噪(zao)(zao)聲(sheng)源(yuan)以及(ji)相(xiang)關環境標準所容許的(de)噪(zao)(zao)聲(sheng)級之(zhi)差確定降噪(zao)(zao)量，冷卻塔降噪(zao)(zao)治理廠，進行方案設計。

噪聲(sheng)(sheng)(sheng)(sheng)(sheng)控(kong)制要從聲(sheng)(sheng)(sheng)(sheng)(sheng)源、傳(chuan)播途徑上進行(xing)綜(zong)合治理。在(zai)噪聲(sheng)(sheng)(sheng)(sheng)(sheng)達到(dao)受聲(sheng)(sheng)(sheng)(sheng)(sheng)點之前，采用阻尼(ni)、隔聲(sheng)(sheng)(sheng)(sheng)(sheng)、吸聲(sheng)(sheng)(sheng)(sheng)(sheng)和(he)(he)建筑(zhu)布局等措施，盡力降(jiang)低聲(sheng)(sheng)(sheng)(sheng)(sheng)源的(de)振(zhen)動(dong)，或者(zhe)將傳(chuan)播中的(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)能吸收掉(diao)，或者(zhe)設置障(zhang)礙，使聲(sheng)(sheng)(sheng)(sheng)(sheng)音全部(bu)或部(bu)分反射出去。噪聲(sheng)(sheng)(sheng)(sheng)(sheng)污染(ran)(ran)(ran)是(shi)(shi)一種物理污染(ran)(ran)(ran)，是(shi)(shi)指人(ren)們不(bu)需要的(de)和(he)(he)令人(ren)厭煩的(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)音。大量研(yan)究、調查和(he)(he)統計結果表明，人(ren)體多(duo)種疾病的(de)發展(zhan)和(he)(he)惡化(hua)與噪聲(sheng)(sheng)(sheng)(sheng)(sheng)有著密切的(de)關系。噪聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)來源是(shi)(shi)非(fei)常(chang)多(duo)的(de)。在(zai)工(gong)廠(chang)里(li)，發動(dong)機的(de)運轉聲(sheng)(sheng)(sheng)(sheng)(sheng)，通風機吸氣或排氣聲(sheng)(sheng)(sheng)(sheng)(sheng)，材料的(de)鋸割(ge)、沖壓(ya)、切削聲(sheng)(sheng)(sheng)(sheng)(sheng)…使得一些(xie)工(gong)廠(chang)成為噪聲(sheng)(sheng)(sheng)(sheng)(sheng)污染(ran)(ran)(ran)非(fei)常(chang)嚴重的(de)單(dan)位。

噪聲(sheng)(sheng)(sheng)控制要(yao)從聲(sheng)(sheng)(sheng)源(yuan)(yuan)、傳(chuan)播(bo)途徑上進行綜合治(zhi)(zhi)理。在噪聲(sheng)(sheng)(sheng)達到(dao)受聲(sheng)(sheng)(sheng)點之前，采(cai)用阻(zu)尼、隔(ge)聲(sheng)(sheng)(sheng)、吸(xi)聲(sheng)(sheng)(sheng)和(he)建筑(zhu)布局等(deng)(deng)措施，冷(leng)卻(que)塔降噪治(zhi)(zhi)理措施，盡力降低聲(sheng)(sheng)(sheng)源(yuan)(yuan)的振動，合肥冷(leng)卻(que)塔降噪，或者將傳(chuan)播(bo)中的聲(sheng)(sheng)(sheng)能(neng)吸(xi)收掉，或者設置障(zhang)(zhang)礙(ai)，冷(leng)卻(que)塔降噪處理方案(an)，使聲(sheng)(sheng)(sheng)音(yin)(yin)(yin)全(quan)部(bu)或部(bu)分反射(she)出(chu)(chu)去。制定好的噪音(yin)(yin)(yin)治(zhi)(zhi)理，采(cai)用的隔(ge)音(yin)(yin)(yin)板(ban)、隔(ge)音(yin)(yin)(yin)屏(ping)障(zhang)(zhang)、吸(xi)音(yin)(yin)(yin)板(ban)材料來(lai)阻(zu)止、隔(ge)聲(sheng)(sheng)(sheng)、吸(xi)聲(sheng)(sheng)(sheng)和(he)建筑(zhu)等(deng)(deng)來(lai)措施將傳(chuan)播(bo)中的聲(sheng)(sheng)(sheng)能(neng)吸(xi)收掉，或者設置障(zhang)(zhang)礙(ai)使聲(sheng)(sheng)(sheng)音(yin)(yin)(yin)全(quan)部(bu)或部(bu)分反射(she)出(chu)(chu)去。