揚(yang)塵(chen)污(wu)染(ran)(ran)建(jian)鄴(ye)區華新(xin)城工(gong)(gong)(gong)地正在施(shi)工(gong)(gong)(gong)，居民向(xiang)省環保(bao)督察(cha)組投訴，工(gong)(gong)(gong)地早上6點開始施(shi)工(gong)(gong)(gong)，噪聲(sheng)，降音(yin)降噪設備(bei)多(duo)少錢(qian)，且揚(yang)塵(chen)污(wu)染(ran)(ran)嚴重。建(jian)鄴(ye)區環保(bao)局和(he)雙閘(zha)街道(dao)現(xian)場(chang)調查后發現(xian)，該工(gong)(gong)(gong)地將拆卸下的混凝土塊(kuai)通(tong)過研磨(mo)機打碎成粉(fen)末，切割時產(chan)生噪聲(sheng)，且露(lu)天堆放沒(mei)有(you)(you)(you)覆(fu)蓋，揚(yang)塵(chen)污(wu)染(ran)(ran)。整(zheng)改要求建(jian)鄴(ye)區環保(bao)局立即對(dui)工(gong)(gong)(gong)地進行(xing)查處，要求施(shi)工(gong)(gong)(gong)方(fang)立即停止現(xian)場(chang)粉(fen)碎作業、對(dui)加(jia)工(gong)(gong)(gong)區進行(xing)封閉(bi)隔音(yin)、嚴禁露(lu)天粉(fen)碎作業，同時加(jia)強揚(yang)塵(chen)管控。但復查后發現(xian)工(gong)(gong)(gong)地只(zhi)做(zuo)了部分整(zheng)改，仍存(cun)在加(jia)工(gong)(gong)(gong)物料沒(mei)有(you)(you)(you)完全覆(fu)蓋、加(jia)工(gong)(gong)(gong)場(chang)地沒(mei)有(you)(you)(you)清理保(bao)潔的情(qing)況。

⒈降低(di)排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)是(shi)機(ji)組(zu)的(de)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)源(yuan)，其(qi)特點是(shi)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)級高，排(pai)(pai)氣速度快(kuai)，治理(li)難度大。采(cai)用的(de)阻(zu)抗型復合式的(de)消聲(sheng)(sheng)(sheng)(sheng)器，一般可(ke)使排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)降低(di)40-60?db?(a?)。?⒉降低(di)軸流風(feng)機(ji)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。降低(di)發電(dian)機(ji)組(zu)冷卻(que)(que)風(feng)機(ji)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)時，必須考慮兩(liang)個問題，一是(shi)排(pai)(pai)氣通道所(suo)允許(xu)的(de)壓(ya)力(li)損失。二是(shi)要求的(de)消聲(sheng)(sheng)(sheng)(sheng)量。針對上述兩(liang)點，可(ke)選用阻(zu)式消聲(sheng)(sheng)(sheng)(sheng)器。?⒊機(ji)房(fang)的(de)隔聲(sheng)(sheng)(sheng)(sheng)、吸(xi)聲(sheng)(sheng)(sheng)(sheng)處理(li)和機(ji)組(zu)隔振?（1）機(ji)房(fang)隔聲(sheng)(sheng)(sheng)(sheng)。機(ji)組(zu)的(de)排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)和冷卻(que)(que)風(feng)機(ji)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)降低(di)之后(hou)，剩(sheng)下來(lai)的(de)主要噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)源(yuan)是(shi)柴(chai)油機(ji)機(ji)械噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)和燃燒噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。

噪(zao)(zao)(zao)(zao)音(yin)治理工(gong)程流程方(fang)(fang)案、事先對噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)污染源(yuan)的(de)(de)(de)調查、測試噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)超標(biao)及噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)傳(chuan)播(bo)途徑等情況。在(zai)確定(ding)(ding)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)控(kong)制方(fang)(fang)案之前，應到噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)污染的(de)(de)(de)現場，調查主(zhu)要噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)源(yuan)及其產(chan)生噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)原因，了解噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)傳(chuan)播(bo)的(de)(de)(de)途徑，走訪噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)受害者。進行(xing)實際噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)測量，由(you)測得(de)的(de)(de)(de)結果(guo)繪(hui)制噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)分布圖(tu)，在(zai)廠區及居民區的(de)(de)(de)地(di)圖(tu)上用(yong)不(bu)同的(de)(de)(de)等聲(sheng)(sheng)(sheng)(sheng)級(ji)曲(qu)線表示(shi)。第二、確定(ding)(ding)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)控(kong)制工(gong)程降(jiang)噪(zao)(zao)(zao)(zao)量。把現場測得(de)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)數(shu)據與噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)標(biao)準(zhun)(zhun)(包括、部頒標(biao)準(zhun)(zhun)及地(di)方(fang)(fang)和企業(ye)標(biao)準(zhun)(zhun))進行(xing)比較，確定(ding)(ding)所(suo)需降(jiang)低(di)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)數(shu)值，即(ji)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)級(ji)和各頻帶聲(sheng)(sheng)(sheng)(sheng)壓級(ji)應降(jiang)低(di)的(de)(de)(de)分貝(bei)數(shu)。