二氧化氯本(ben)身(shen)屬(shu)於(yu)強(qiang)氧(yang)化(hua)劑(ji),適(shi)用(yong)於(yu)油(you)田(tian)的(de)汙(wu)水(shui)處(chu)理(li)。二(er)氧(yang)化(hua)氯(lv)可(ke)以(yi)通(tong)過(guo)自(zi)身(shen)強(qiang)氧(yang)化(hua)性(xing)的(de)化(hua)學(xue)性(xing)質(zhi),對(dui)油(you)井(jing)內(nei)的(de)水(shui)進(jin)行(xing)殺(sha)菌(jun)處(chu)理(li),有(you)效(xiao)的(de)抑(yi)製(zhi)油(you)井(jing)內(nei)的(de)微(wei)生(sheng)物(wu)繁(fan)殖(zhi)與(yu)生(sheng)長(chang),避(bi)免(mian)微(wei)生(sheng)物(wu)的(de)繁(fan)殖(zhi)而(er)腐(fu)蝕(shi)或(huo)堵(du)塞(sai)油(you)井(jing)管(guan)道(dao)。基(ji)於(yu)此(ci),研(yan)究(jiu)與(yu)分(fen)析(xi)二(er)氧(yang)化(hua)氯(lv)在(zai)油(you)田(tian)水(shui)處(chu)理(li)中(zhong)的(de)應(ying)用(yong),對(dui)進(jin)一(yi)步(bu)解(jie)決(jue)油(you)田(tian)汙(wu)水(shui)問(wen)題(ti),避(bi)免(mian)汙(wu)水(shui)腐(fu)蝕(shi)油(you)井(jing)管(guan)道(dao)等(deng)方(fang)麵(mian)有(you)積(ji)極(ji)作(zuo)用(yong)。
1 二氧化氯製備方法
二氧化氯本身具有不穩定、見光分解等特性,常溫狀態下,沸點為11℃,在-11℃以下,會液化變成紅棕色液體,在-59℃xia,zehuixingchengjiejing。ciwai,zaiyoujizhengqihuanjingxia,jirongyichuxiananquanfengxian。eryanghualvzaigongyezhongdeyingyongbushihechangtuyunshu,erqie,haixuyaojinxingbiguangbaocun。zaixianyoudeeryanghualvzhibeifangfazhong,yihuaxuefa、電(dian)解(jie)法(fa)等(deng)多(duo)種(zhong)手(shou)段(duan)為(wei)主(zhu)。一(yi)方(fang)麵(mian),化(hua)學(xue)法(fa)是(shi)利(li)用(yong)化(hua)學(xue)反(fan)應(ying)的(de)方(fang)式(shi)進(jin)行(xing)製(zhi)備(bei),技(ji)術(shu)相(xiang)對(dui)比(bi)較(jiao)成(cheng)熟(shu)。原(yuan)料(liao)不(bu)同(tong),化(hua)學(xue)製(zhi)備(bei)手(shou)段(duan)方(fang)麵(mian)也(ye)存(cun)在(zai)一(yi)定(ding)的(de)差(cha)異(yi),現(xian)有(you)比(bi)較(jiao)常(chang)見(jian)的(de)是(shi)以(yi)鹽(yan)酸(suan)-氯酸鈉法為主。
其生產工藝相對比較簡單,而且,容易操作,生產成本相對較低,產生的二氧化氯具有較強的氧化性。
另(ling)一(yi)方(fang)麵(mian),電(dian)解(jie)法(fa)以(yi)電(dian)解(jie)飽(bao)和(he)食(shi)鹽(yan)水(shui)為(wei)主(zhu),電(dian)解(jie)液(ye)的(de)變(bian)化(hua)會(hui)對(dui)電(dian)解(jie)效(xiao)果(guo)產(chan)生(sheng)顯(xian)著(zhu)的(de)影(ying)響(xiang)。這(zhe)種(zhong)方(fang)法(fa)的(de)成(cheng)本(ben)相(xiang)對(dui)較(jiao)低(di),但(dan)對(dui)於(yu)設(she)備(bei)和(he)電(dian)解(jie)液(ye)中(zhong)的(de)離(li)子(zi)膜(mo)以(yi)及(ji)電(dian)極(ji)陽(yang)極(ji)的(de)材(cai)料(liao)要(yao)求(qiu)較(jiao)為(wei)嚴(yan)格(ge),另(ling)外(wai)需(xu)要(yao)注(zhu)意(yi)電(dian)解(jie)製(zhi)備(bei)過(guo)程(cheng)控(kong)製(zhi)。
2 二氧化氯對細菌的作用機理
二氧化氯shiyidantiyouliyuanzituandexingtaicunzai,jirongyirongyushui,keyizuoweirongjiedeqitibaocunzairongyezhong,eryanghualvzaijianguanghuoshouredengzhuangtaixia,huifenjiechengyangqiyulvqi。eryanghualvzaiyoutianshuichulizhong,keyiyizhiyoutianjingguanneideweishengwufanzhi,bimianguandaodusaiyijifushidengqingkuangdechuxian。eryanghualvrongjiedaoshuizhong,yuxijundexibaojiegouhuichanshengjuliedehuaxuefanying。eryanghualvduixibaobiyoujiaoqiangdexifuyijichuantounengli,xibaobishikongzhiwuzhijinchudeguanjian,ereryanghualvhuiliyongqibenshendeyanghuaxingyuxibaobishangdemeizhijianchanshenghuaxuefanying,xijundexibaobishiquhuoxinghou,eryanghualvhuijinrudaoxijunneibu,bingtongguoyudanbaizhizhijianchanshenghuaxuefanying,congerpohuaixijundehuoxing。eryanghualvzairongyushuihou,fenjieshengchengdelvqiyijicilvsuanjuyoujiaoqiangdeyanghuaxing,qiyuS²dengxijunchanwuzhijianhuichanshengjuliedeyanghuafanying,yekeyijiangyouliyushuizhongdeerjiatieliziyanghuaweisanjiatielizi,congershixianduiyoujingguanbiwugoudekuaisuchuli,huanjieyinguandaofushiyijidicengdusaidengwentiduiyoujingzhiliangchanshengdefumianyingxiang。
3 二氧化氯對油田水處理的抑製作用
3.1油田水處理需求及難度
油田水處理過程中,會產生硫酸還原菌、鐵細菌等,這對油井管壁質量會產生直接的影響。硫酸還原菌屬於厭氧菌,其適合在pH為6.5~7.5的de環huan境jing下xia生sheng長chang,而er且qie,在zai無wu氧yang的de環huan境jing下xia,可ke以yi將jiang硫liu酸suan鹽yan等deng物wu質zhi還hai原yuan為wei硫liu化hua物wu。硫liu化hua物wu會hui以yi固gu體ti的de形xing態tai附fu著zhe在zai油you井jing管guan壁bi位wei置zhi,長chang期qi積ji累lei的de狀zhuang態tai下xia,會hui造zao成cheng管guan道dao堵du塞sai,而er且qie,所suo產chan生sheng的de硫liu化hua物wu對dui管guan道dao壁bi會hui產chan生sheng一yi定ding的de腐fu蝕shi,極ji容rong易yi造zao成cheng管guan道dao泄xie漏lou的de情qing況kuang出chu現xian。腐fu生sheng菌jun屬shu於yu有you氧yang呼hu吸xi的de菌jun種zhong,在zai低di礦kuang化hua度du的de環huan境jing中zhong容rong易yi生sheng存cun,適shi應ying的de溫wen度du在zai25~35℃zhijian,zaiyouyangtiaojianxia,keyijiangyoujiwuzhuanhuaweizhanmo,duiyoujingkaicaihuichanshengzhijiedeyingxiang。tiexijunbingbushiyutiehuohantiehuahewufanyingerchanshengdexijun,qibenshenshizaiyanghuayatiedejichushangzhuanhuaweigaojiatiehuahewu,huijiakuaitiezhiguandaodefushisulv。qibenshenyikaoxishoutieyuansujinxingfanzhi。tiexijunbenshenshuyuhaoyangjun,zaijianxinghuanjingxiabushiheshengcun,danshi,zhongzuyangqiyijipiansuanxinghuanjingxia,tiexijunjirongyidaliangfanzhi,suoyi,zaiyoutianshuichuliguochengzhong,rengranxuyaoduiqijinxingkongzhi,zheyouzhuyuyoutianshengtaihuajiansheyufazhan。
傳(chuan)統(tong)油(you)田(tian)水(shui)處(chu)理(li)過(guo)程(cheng)中(zhong),汙(wu)染(ran)性(xing)比(bi)較(jiao)大(da),而(er)且(qie),腐(fu)生(sheng)菌(jun)的(de)處(chu)理(li)難(nan)度(du)相(xiang)對(dui)比(bi)較(jiao)大(da),在(zai)重(zhong)複(fu)用(yong)藥(yao)處(chu)理(li)下(xia),腐(fu)生(sheng)菌(jun)的(de)抗(kang)藥(yao)性(xing)提(ti)升(sheng),影(ying)響(xiang)油(you)氣(qi)資(zi)源(yuan)的(de)開(kai)采(cai)與(yu)綜(zong)合(he)發(fa)展(zhan)。此(ci)外(wai),油(you)田(tian)水(shui)處(chu)理(li)過(guo)程(cheng)中(zhong),會(hui)產(chan)生(sheng)廢(fei)渣(zha)物(wu)質(zhi),這(zhe)對(dui)區(qu)域(yu)生(sheng)態(tai)環(huan)境(jing)方(fang)麵(mian)也(ye)會(hui)產(chan)生(sheng)直(zhi)接(jie)的(de)影(ying)響(xiang)。
3.2二氧化氯在油田水處理中的應用
zaiyoutianshuichulideguochengzhong,huichuxiandaliangdewuni。zhexiewuniyousanbufenzucheng,shouxianshiyuanyoukaicaiguochengzhongsuochanshengdenisha,zhebufenwunidaduoyixixiaodeshashikeliweizhu,qibenshendefuzhenenglixiangduibijiaocha,chulixiangduibijiaorongyi。qicishixijunfanzhisuochanshengdeshengchengwu,yiliuhuawu、油狀物、藻類生物等為主。最後一部分是調節油田的汙水pH過程產生的 Ca(OH)₂,其溶解度相對較低,因而會產生大量的沉澱。在對砂石顆粒進行處理後,細菌的產生物以及有害離子產生的汙泥占比在15%左右, 而不溶性的 Ca(OH)₂占比為85%。
二氧化氯對油田水中的不同汙泥會產生直接的影響,在不同的pH下,二氧化氯的反應與氧化效果等方麵存在一定的差異,當汙水的pH在6.5~7.5之間時,二氧化氯反應的物質與細菌產生的硫化物、乳化物為主,會生成溶於水的氯化物,強化物質的溶解度,以此達到降低汙水汙泥量的目的。在汙水的pH高於8.0時,汙水中會出現( 以及不易溶於水的沉澱,所以,可以對汙水pH起到調節作用,在中和OH⁻的狀態下,降低汙水中的結垢量。
4 結語
綜上所述,二氧化氯可以作為氧化劑對汙水中的微生物進行有效抑製,其製備工藝、caozuofangfadengxiangduijiandan,suoyiyanjiueryanghualvzaiyoutianshuichulizhongdeyingyong,duiyuyoutianshuichulixiaoguotishengfangmianyoujijizuoyong。ciwai,xijundengweishengwubingbuhuiduieryanghualvchanshengkangyaoxing。suoyi,eryanghualvzaiyoutianshuichulizhongdeshijiyingyong,gengduodexuyaoconganquancaozuodejiaoduchufa,tigaoeryanghualvdeshijiyingyongxiaoguo,cujinyoutianshengtaihuanjingdechuangxinfazhan。