![生物濾料]( "生物濾料")
球型輕質多孔生(sheng)(sheng)(sheng)物(wu)(wu)濾料(liao)(liao)以粘土、膨(peng)潤土、煉(lian)鋼赤泥為(wei)主要原(yuan)料(liao)(liao)，并添加特制(zhi)的(de)(de)(de)(de)(de)發泡(pao)造孔劑(ji)，經(jing)(jing)造粒(li)成(cheng)型、高溫(wen)燒(shao)結，制(zhi)備(bei)(bei)成(cheng)表(biao)(biao)面(mian)粗(cu)糙、比(bi)(bi)表(biao)(biao)面(mian)積(ji)(ji)大(da)、孔隙(xi)率(lv)高、外表(biao)(biao)堅硬(ying)的(de)(de)(de)(de)(de)陶粒(li)。本產(chan)品(pin)與傳(chuan)統的(de)(de)(de)(de)(de)生(sheng)(sheng)(sheng)物(wu)(wu)濾料(liao)(liao)相比(bi)(bi) 不(bu)僅具有質地輕、化(hua)(hua)學(xue)穩定性好、強(qiang)(qiang)度(du)(du)(du)適(shi)(shi)宜(yi)、表(biao)(biao)面(mian)粗(cu)糙易掛膜、吸水(shui)性適(shi)(shi)中(zhong)(zhong)等優點，而且表(biao)(biao)面(mian)微(wei)(wei)(wei)(wei)孔發達且分(fen)布合(he)理(li)，平均(jun)微(wei)(wei)(wei)(wei)孔直徑(jing)約為(wei)200微(wei)(wei)(wei)(wei)米，非常(chang)適(shi)(shi)合(he)微(wei)(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)(wu)的(de)(de)(de)(de)(de)接種(zhong)、馴化(hua)(hua)、繁殖生(sheng)(sheng)(sheng)長(chang)，同(tong)時(shi)耐(nai)沖洗、不(bu)堵塞(sai)，具有良好的(de)(de)(de)(de)(de)物(wu)(wu)理(li)、化(hua)(hua)學(xue)和水(shui)力學(xue)特性。可(ke)適(shi)(shi)應于不(bu)同(tong)污水(shui)凈化(hua)(hua)的(de)(de)(de)(de)(de)要求。由(you)于該濾料(liao)(liao)比(bi)(bi)表(biao)(biao)面(mian)積(ji)(ji)高達6-9m2/g，可(ke)附著生(sheng)(sheng)(sheng)長(chang)并積(ji)(ji)累(lei)高濃度(du)(du)(du)的(de)(de)(de)(de)(de)微(wei)(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)(wu)量(liang)。高濃度(du)(du)(du)的(de)(de)(de)(de)(de)微(wei)(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)(wu)量(liang)使(shi)曝氣生(sheng)(sheng)(sheng)物(wu)(wu)濾池(chi)的(de)(de)(de)(de)(de)容積(ji)(ji)負荷增大(da)，降解速(su)率(lv)顯(xian)著提(ti)高。大(da)量(liang)的(de)(de)(de)(de)(de)微(wei)(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)(wu)生(sheng)(sheng)(sheng)長(chang)在(zai)生(sheng)(sheng)(sheng)物(wu)(wu)濾料(liao)(liao)表(biao)(biao)面(mian)和開口微(wei)(wei)(wei)(wei)孔內(nei)，特別是(shi)生(sheng)(sheng)(sheng)長(chang)在(zai)微(wei)(wei)(wei)(wei)孔內(nei)的(de)(de)(de)(de)(de)微(wei)(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)(wu)不(bu)易流(liu)失，即使(shi)長(chang)時(shi)間不(bu)運轉也能(neng)保持其菌種(zhong)，并使(shi)BAF可(ke)間斷運行，管理(li)簡(jian)單(dan)。該濾料(liao)(liao)為(wei)無機燒(shao)結材料(liao)(liao)，經(jing)(jing)久耐(nai)用，故設備(bei)(bei)維修(xiu)費用低。本產(chan)品(pin)經(jing)(jing) “建設部(bu)水(shui)處(chu)(chu)理(li)濾料(liao)(liao)質量(liang)監督檢測中(zhong)(zhong)心”檢測，指標(biao)(biao)優良，性能(neng)可(ke)靠，同(tong)時(shi)本產(chan)品(pin)經(jing)(jing) “中(zhong)(zhong)國疾病(bing)預防(fang)(fang)控制(zhi)中(zhong)(zhong)心環境與健康(kang)相關產(chan)品(pin)安全所(suo)(suo)”檢測，所(suo)(suo)有指標(biao)(biao)均(jun)符合(he)《生(sheng)(sheng)(sheng)活(huo)飲用水(shui)輸配水(shui)設備(bei)(bei)及防(fang)(fang)護材料(liao)(liao)的(de)(de)(de)(de)(de)安全性能(neng)評價標(biao)(biao)準(zhun)》要求，可(ke)用于生(sheng)(sheng)(sheng)活(huo)飲用水(shui)的(de)(de)(de)(de)(de)處(chu)(chu)理(li)。 濾料(liao)(liao)技(ji)術參數特性名稱磨損(sun)率(lv)與破碎(sui)率(lv)之和(%)含泥量(liang)(%)鹽(yan)酸可(ke)溶性(%)表(biao)(biao)觀密度(du)(du)(du)(g/cm3)堆積(ji)(ji)密度(du)(du)(du)(g/cm3)空隙(xi)率(lv)(%)比(bi)(bi)表(biao)(biao)面(mian)積(ji)(ji)(cm2/g)筒壓強(qiang)(qiang)度(du)(du)(du)(MPa)參數≤4≤1≤1.51.4～1.8≤1.0＞42≥2×104≥6
![膜片式曝氣器]( "膜片式曝氣器")
一、優(you)越性 膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)式(shi)微(wei)(wei)(wei)(wei)孔(kong)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)是(shi)80年代研(yan)制(zhi)的(de)(de)(de)(de)(de)(de)最新型(xing)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)裝(zhuang)(zhuang)(zhuang)置(zhi)，該(gai)裝(zhuang)(zhuang)(zhuang)置(zhi)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)泡(pao)小、氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)液面積大，氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)泡(pao)擴(kuo)散均(jun)勻，不會產生孔(kong)眼(yan)堵(du)塞(sai)，耐腐蝕性強。但(dan)通(tong)過多年的(de)(de)(de)(de)(de)(de)運(yun)行(xing)出現了(le)一些難以解決的(de)(de)(de)(de)(de)(de)不足。如：膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)脫落、膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)撕裂(lie)、膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)打(da)(da)不開(kai)(kai)、污泥進(jin)入(ru)支氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)等問題。因(yin)此該(gai)公司研(yan)究開(kai)(kai)發(fa)部與國(guo)內外許多院校和(he)(he)科研(yan)單位(wei)合(he)(he)作(zuo)吸收(shou)國(guo)際先進(jin)經驗(yan)攻(gong)克了(le)各項技(ji)術(shu)難關，對膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)進(jin)行(xing)了(le)改革，研(yan)制(zhi)開(kai)(kai)發(fa)了(le)二十(shi)一世(shi)紀國(guo)際先進(jin)水(shui)平(ping)的(de)(de)(de)(de)(de)(de)新一代盤式(shi)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)微(wei)(wei)(wei)(wei)孔(kong)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)。二、主(zhu)(zhu)要技(ji)術(shu)性能(neng) 可(ke)(ke)變(bian)微(wei)(wei)(wei)(wei)孔(kong)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)設計成(cheng)略凸起拱形面，采用(yong)ABS工程(cheng)塑料(liao)為主(zhu)(zhu)體(ti)。膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)具有抗附(fu)著表面的(de)(de)(de)(de)(de)(de)專用(yong)進(jin)口橡膠(jiao)（EPDM），通(tong)過特殊(shu)加工制(zhi)成(cheng)，膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)開(kai)(kai)孔(kong)選(xuan)用(yong)德國(guo)進(jin)口數控刀(dao)開(kai)(kai)孔(kong)，保(bao)證了(le)孔(kong)的(de)(de)(de)(de)(de)(de)質(zhi)量和(he)(he)精度。曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)在(zai)充氧(yang)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)時(shi)，主(zhu)(zhu)體(ti)盤面設計了(le)四條送(song)(song)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)槽，使進(jin)入(ru)的(de)(de)(de)(de)(de)(de)空氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)通(tong)過止(zhi)回(hui)閥緩沖后直接送(song)(song)至(zhi)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)頭中(zhong)央(yang)保(bao)證膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)一次性低阻(zu)力輕松(song)打(da)(da)開(kai)(kai)。膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)采用(yong)羅(luo)紋(wen)反鎖機械化裝(zhuang)(zhuang)(zhuang)配，確保(bao)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)永不脫落。進(jin)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)時(shi)布(bu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)膜(mo)(mo)(mo)(mo)(mo)(mo)上微(wei)(wei)(wei)(wei)孔(kong)自行(xing)鼓脹脹開(kai)(kai)，確保(bao)空氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)通(tong)過。在(zai)停(ting)止(zhi)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)時(shi)，布(bu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)膜(mo)(mo)(mo)(mo)(mo)(mo)上的(de)(de)(de)(de)(de)(de)可(ke)(ke)變(bian)微(wei)(wei)(wei)(wei)孔(kong)呈封閉狀(zhuang)態，由于(yu)布(bu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)膜(mo)(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)(de)(de)(de)可(ke)(ke)變(bian)微(wei)(wei)(wei)(wei)孔(kong)自行(xing)擴(kuo)張和(he)(he)收(shou)縮(suo)，避免(mian)(mian)經往(wang)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)微(wei)(wei)(wei)(wei)孔(kong)受堵(du)現象(xiang)。其(qi)次在(zai)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)的(de)(de)(de)(de)(de)(de)底盤設有止(zhi)回(hui)閥裝(zhuang)(zhuang)(zhuang)置(zhi)，當管(guan)(guan)道系統停(ting)止(zhi)供氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)時(shi)阻(zu)止(zhi)混(hun)合(he)(he)液進(jin)入(ru)布(bu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)支管(guan)(guan)，這樣可(ke)(ke)避免(mian)(mian)支管(guan)(guan)內進(jin)入(ru)混(hun)合(he)(he)液而被堵(du)塞(sai)。進(jin)入(ru)的(de)(de)(de)(de)(de)(de)空氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)不需特殊(shu)過濾(lv)，間(jian)歇(xie)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)均(jun)不堵(du)塞(sai)，并對可(ke)(ke)變(bian)微(wei)(wei)(wei)(wei)孔(kong)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)類普遍出現的(de)(de)(de)(de)(de)(de)布(bu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)膜(mo)(mo)(mo)(mo)(mo)(mo)易吹膜(mo)(mo)(mo)(mo)(mo)(mo)撕裂(lie)和(he)(he)打(da)(da)不開(kai)(kai)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)或膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)受堵(du)現象(xiang)作(zuo)很大的(de)(de)(de)(de)(de)(de)技(ji)術(shu)改進(jin)，這幾項技(ji)術(shu)改革使其(qi)在(zai)長(chang)期運(yun)行(xing)中(zhong)免(mian)(mian)去維修(xiu)之苦，是(shi)新一代的(de)(de)(de)(de)(de)(de)優(you)秀產品。 盤式(shi)曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)技(ji)術(shu)參數曝(pu)(pu)(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)器(qi)規格260200300工作(zuo)通(tong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)量2-5 m3/h.個1.5-3 m3/h.個2-8m3/h.個服務面積0.4-0.8m3/h.個0.3-0.65m3/h...
![旋混式曝氣器]( "旋混式曝氣器")
概 述JY-260型(xing)(xing)旋(xuan)混式(shi)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)是(shi)在常用(yong)(yong)(yong)(yong)(yong)的(de)螺旋(xuan)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)，散(san)流(liu)式(shi)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)，金山型(xing)(xing)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)的(de)基礎上(shang)引進(jin)研(yan)制、改進(jin)的(de)一種新型(xing)(xing)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)裝(zhuang)置，該產(chan)品具有結構簡單、重量輕(qing)、癢(yang)利(li)用(yong)(yong)(yong)(yong)(yong)率(lv)高，不(bu)易(yi)堵塞(sai)和(he)安裝(zhuang)方便(bian)等特(te)點(dian)。主要(yao)特(te)點(dian)JY-260型(xing)(xing)旋(xuan)混式(shi)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)采(cai)用(yong)(yong)(yong)(yong)(yong)多層螺旋(xuan)切(qie)(qie)割(ge)(ge)的(de)形式(shi)進(jin)行充(chong)(chong)氧曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)，當氣(qi)(qi)(qi)(qi)(qi)流(liu)進(jin)入(ru)JY-260型(xing)(xing)旋(xuan)混式(shi)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)時，氣(qi)(qi)(qi)(qi)(qi)流(liu)首先通過(guo)二道螺旋(xuan)切(qie)(qie)割(ge)(ge)系統切(qie)(qie)割(ge)(ge)后(hou)進(jin)入(ru)下層多層鋸齒形曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)頭，進(jin)行多層切(qie)(qie)割(ge)(ge)，使(shi)氣(qi)(qi)(qi)(qi)(qi)泡(pao)切(qie)(qie)割(ge)(ge)成微氣(qi)(qi)(qi)(qi)(qi)泡(pao)，這樣大(da)大(da)提高了氧的(de)利(li)用(yong)(yong)(yong)(yong)(yong)率(lv)，具有曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)均(jun)勻，充(chong)(chong)氧效率(lv)高的(de)特(te)點(dian)適用(yong)(yong)(yong)(yong)(yong)范圍JY-260型(xing)(xing)旋(xuan)混式(shi)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)適用(yong)(yong)(yong)(yong)(yong)于各大(da)、中、小型(xing)(xing)的(de)工(gong)業廢(fei)水和(he)城市污(wu)水的(de)活性污(wu)泥法(fa)生(sheng)化處理，生(sheng)物(wu)接觸氧化法(fa)污(wu)水處理的(de)曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)裝(zhuang)置以及(ji)調節池的(de)預曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)，廣泛適用(yong)(yong)(yong)(yong)(yong)于生(sheng)化處理的(de)推(tui)流(liu)式(shi)及(ji)混合型(xing)(xing)的(de)各種曝(pu)(pu)氣(qi)(qi)(qi)(qi)(qi)器(qi)(qi)內。產(chan)品構造(zao)及(ji)規格(ge)材質：ABS尼(ni)龍 服務面積：0.45-0.55平方米/個 充(chong)(chong)癢(yang)效率(lv)：當水深4m時η=16-20% 外型(xing)(xing)尺寸：260*210 主要(yao)組成：倒(dao)傘狀塔疊式(shi)多層鋸齒布氣(qi)(qi)(qi)(qi)(qi)頭，螺旋(xuan)切(qie)(qie)割(ge)(ge)系統及(ji)連(lian)接管。
![微孔曝氣器]( "微孔曝氣器")
剛玉(yu)微(wei)孔曝(pu)氣(qi)(qi)器(qi)(qi)的(de)氣(qi)(qi)體(ti)擴(kuo)散(san)板是(shi)(shi)由剛玉(yu)制(zhi)(zhi)作(zuo)(zuo)而(er)成(cheng)的(de)，通(tong)(tong)過(guo)擴(kuo)散(san)板散(san)出(chu)的(de)微(wei)氣(qi)(qi)泡直(zhi)徑(jing)小(xiao)、氣(qi)(qi)液界(jie)面(mian)面(mian)積(ji)大，因(yin)此具有較(jiao)高(gao)的(de)傳(chuan)質速(su)率。這樣(yang)(yang)與普通(tong)(tong)曝(pu)氣(qi)(qi)裝置(zhi)相(xiang)比(bi)，可(ke)以(yi)大大節約電(dian)能(neng)，降低運行(xing)成(cheng)本。 剛玉(yu)微(wei)孔曝(pu)氣(qi)(qi)器(qi)(qi)的(de)布(bu)(bu)置(zhi)方式可(ke)滿(man)布(bu)(bu)在池(chi)(chi)底(di)，因(yin)此，在曝(pu)氣(qi)(qi)池(chi)(chi)橫(heng)斷面(mian)上的(de)溶解氧是(shi)(shi)均勻分布(bu)(bu)的(de)，這樣(yang)(yang)就提(ti)高(gao)了(le)污(wu)水的(de)處理(li)(li)效果。剛玉(yu)微(wei)孔曝(pu)氣(qi)(qi)器(qi)(qi)的(de)布(bu)(bu)置(zhi)不受限制(zhi)(zhi)，所以(yi)，對(dui)任何尺寸、任何形(xing)狀(zhuang)、各種(zhong)水深的(de)現有曝(pu)氣(qi)(qi)池(chi)(chi)都可(ke)以(yi)進行(xing)改造。這對(dui)于降低已(yi)有污(wu)水廠的(de)電(dian)耗和(he)(he)運轉(zhuan)費用，具有重要的(de)經濟(ji)效益。 由于剛玉(yu)微(wei)孔曝(pu)氣(qi)(qi)器(qi)(qi)的(de)氣(qi)(qi)體(ti)擴(kuo)散(san)板是(shi)(shi)剛玉(yu)制(zhi)(zhi)品(pin)，其(qi)它(ta)(ta)配件和(he)(he)布(bu)(bu)氣(qi)(qi)管道采用不銹鋼及工程(cheng)塑料制(zhi)(zhi)作(zuo)(zuo)，因(yin)此，在污(wu)水池(chi)(chi)內(nei)不怕銹蝕(shi)在很大程(cheng)度(du)上減(jian)少了(le)運轉(zhuan)維護的(de)工作(zuo)(zuo)量。 由于剛玉(yu)微(wei)孔曝(pu)氣(qi)(qi)器(qi)(qi)氧的(de)利用率高(gao)，與其(qi)它(ta)(ta)現有曝(pu)氣(qi)(qi)裝置(zhi)相(xiang)比(bi)，在同(tong)樣(yang)(yang)運轉(zhuan)負荷的(de)情(qing)況下，曝(pu)氣(qi)(qi)量可(ke)以(yi)大大減(jian)少，且(qie)滿(man)池(chi)(chi)布(bu)(bu)氣(qi)(qi)均勻。所以(yi)形(xing)成(cheng)均勻和(he)(he)緩的(de)攪(jiao)拌狀(zhuang)態，不會因(yin)過(guo)度(du)剪(jian)切而(er)打碎生物絮體(ti)，這就有利于二(er)沉池(chi)(chi)的(de)澄清和(he)(he)污(wu)泥的(de)脫(tuo)水。同(tong)時(shi)，也可(ke)以(yi)避免(mian)由于大量曝(pu)氣(qi)(qi)形(xing)成(cheng)飛濺的(de)泡沫浪花而(er)引起的(de)結凍和(he)(he)管理(li)(li)不便等問題。主要技術性(xing)能(neng)參(can)數 1. 平(ping)均孔徑(jing)：150-200μ 2. 空隙率：40-50% 3. 抗壓強度(du)：120kg/cm2或1.3T/個盤 4. 抗折強度(du)：120kg/cm2 5. 耐(nai)腐蝕(shi)性(xing)能(neng)：酸堿失重4-8%，有機溶劑...
特性濾料呈(cheng)柔性、可壓縮(suo)、孔(kong)隙(xi)大(da)，截(jie)污(wu)能力(li)強(qiang)；工作時濾層孔(kong)隙(xi)上疏下密，符合理(li)想濾層的孔(kong)隙(xi)分布；比重略大(da)于水，易反沖洗，材質優良有(you)較(jiao)強(qiang)的耐磨性和(he)抗化學侵蝕性能。