銆€銆€鍦ㄥ湅瀹舵(bi膩o)婧�(zh菙n)鏂规硶(閴绘硶)娓畾COD鐨勯亷绋嬩腑锛屾按妯ｄ腑瀛樺湪鐨凜l-妤垫槗琚哀鍖栧姂姘у寲锛涘緸鑰屾秷鑰楁哀鍖栧姂鐨勯噺灏�(d菐o)鑷存脯閲忕祼(ji茅)鏋滃亸楂�锛岃€屼笖閭勮垏Ag2SO4鍙嶆噳(y墨ng)鐢熸垚AgCl娌夋穩浣垮偓鍖栧姂涓瘨锛屽洜姝l-鎴愮偤寤㈡按COD娓畾鐨勪富瑕佸共鎿剧墿锛屽挨鍏舵槸灏嶄簬楂樻隘浣嶤OD鐨勫虎姘�锛岄噰鐢ㄥ湅瀹舵(bi膩o)婧�(zh菙n)鏂规硶鎵€娓暩(sh霉)鎿�(j霉)骞句箮涓嶅叿鏈夊弮鑰冨児(ji脿)鍊�銆傞暦鏈熶互渚嗗唬澶х挵(hu谩n)淇濆伐浣滆€呭氨濡備綍娑堥櫎Cl-鐨勫共鎿鹃€�(j矛n)琛屼簡涓嶆噲鐨勫姫鍔�锛屽厛鍚庢彁鍑烘睘楣芥硶銆佹(bi膩o)婧�(zh菙n)鏇茬窔鏍℃娉�銆丄g+娌夋穩娉曘€佷綆婵冨害姘у寲鍔戞硶銆佸瘑灏佹秷瑙ｆ硶鍙婃隘姘ｅ惛鏀舵牎姝ｆ硶绛夋柟娉�锛屾湰鏂囧皪鍚勭ó鏂规硶浣滀竴姒傝堪銆�

1 Cl-骞叉摼娑堥櫎鏂规硶

1.1 姹為菇娉�
銆€銆€姹為菇娉曟槸鍦嬪妯�(bi膩o)婧�(zh菙n)鏂规硶娓畾COD鏅�(sh铆)閲囩敤鐨勬秷闄l-骞叉摼鐨勬柟娉�锛岄€氬父纭吀姹炴帺钄藉姂鐨勫姞鍏ラ噺鎸塇gSO4鍜孋l-璩�(zh矛)閲忔瘮鐐�10锛�1鐐哄疁銆傚皪Cl-鐨勮唱(zh矛)閲忔績搴﹀皬浜�2000mg锛廘鐨勬按妯�锛岃┎鏂规硶鏁堟灉寰堥’钁�锛屼絾鐣�(d膩ng)寤㈡按涓瑿l-鐨勮唱(zh矛)閲忔績搴﹁秴閬�2000mg锛廘锛岀敋鑷抽珮閬�(d谩)10000—20000mg锛弆鑰孋OD浣庢檪(sh铆)锛岃┎鏂规硶鍓囬’寰楀姏涓嶅緸蹇�锛岃〃1瑾槑浜嗛噸閴婚吀閴€娉�(妯�(bi膩o)婧�(zh菙n)娉�)娓畾楂樻績搴l-寤㈡按鏅�(sh铆)鐢�(ch菐n)鐢熺殑瑾ゅ樊[1]銆�

琛�1 閲嶉壔閰搁墍娉曟脯瀹氶珮婵冨害Cl-寤㈡按COD瑾ゅ樊

銆€銆€鐐轰簡鎿�(ku貌)澶ф(bi膩o)婧�(zh菙n)娉曠殑鎳�(y墨ng)鐢ㄨ寖鍦�锛屽皪浜庨珮姘虎姘�锛屼害鏈変汉閫氶亷鍔犲ぇ纭吀姹炵殑鐢ㄩ噺渚嗛仈(d谩)鍒扮洰鐨刐2]銆傜敱浜庣～閰告睘鏈韩鐐哄妵姣掞紝骞朵笖瑭︽ǎ寤㈡恫涓殑姹為菇寰堥洠铏曠悊鎺�锛屾渻(hu矛)灏嶇挵(hu谩n)澧冮€犳垚浜屾姹℃煋銆傚洜姝ょ従(xi脿n)鍦ㄤ汉鍊戦兘鑷村姏浜庝笉閲囩敤鎴栫洝閲忓皯閲囩敤瀹冧締浣滅偤娑堥櫎Cl-骞叉摼鐨勬柟娉曪紝鏈変簺鐠�(hu谩n)澧冨伐浣滆€呭槜瑭﹂亱(y霉n)鐢ˋgNO3-Bi(NO3)3浠ｆ浛HgSO4浣滄帺钄藉姂[3-4]銆�
1.2 妯�(bi膩o)婧�(zh菙n)鏇茬窔鏍℃娉�
銆€銆€瑭叉硶鍏烽珨鎿嶄綔姝ラ鐐猴細鍏堥厤鍒朵笉鍚孋1-婵冨害鐨勬按妯�锛屾脯鍑哄叾COD鍊�锛岀躬鍒禖OD-C1-妯�(bi膩o)婧�(zh菙n)鏇茬窔锛涚劧鍚庡彇鍏╀唤鐩稿悓鐨勫緟娓惈姘按妯�锛屽叾涓�1浠芥脯鍑哄叾涓瑿l-鐨勫惈閲忥紝鏌OD-Cl-妯�(bi膩o)婧�(zh菙n)鏇茬窔姹傚嚭Cl-灏嶆噳(y墨ng)鐨凜OD鍊�(CODcl-)锛屽彟1浠藉湪涓嶅姞鎺╄斀鍔戠殑鎯呮硜涓�锛屾脯鍏禖l-鑸囨湁姗�(j墨)鐗╁叡鍚岀敘(ch菐n)鐢熺殑COD鍊�(COD琛ㄨ)锛涙渶鍚庢按妯ｇ殑瀵�(sh铆)娓珻OD鍊硷細ρ(COD瀵�(sh铆)娓級=ρ(COD琛ㄨ)-ρ(CODcl-)[1]銆�
銆€銆€妯�(bi膩o)婧�(zh菙n)鏇茬窔鏍℃娉曠劇闇€鍔犲叆纭吀姹�锛屾槸灏嶆睘楣芥硶鐨勬敼閫�(j矛n)锛屼絾鐢变簬鍚勬搷浣滆€呮墍浣跨敤鐨勬浠�(濡傞吀搴�锛岄噸閴婚吀閴€婵冨害鍜屽洖娴佹檪(sh铆)闁撶瓑)涓嶅悓锛屼娇寰楁隘鐨勬哀鍖栫▼搴︿笉涓€妯�锛屽洜姝ら€欎簺“妯�(bi膩o)婧�(zh菙n)鏇茬窔”涓嶆槗鐐轰粬浜烘墍鍊熺敤锛屾瘡娆℃脯瀹氫箣鍓嶉兘瑕佸厛绻埗锛岄’寰楁瘮杓冪叐鐟�銆備絾鏄鏋滄按妯ｄ腑鐨凜l-鍦–OD娓畾鏅�(sh铆)鑳藉瀹屽叏琚哀鍖栫殑瑭�锛岄偅涔堝氨鍙互鐩存帴鐢辨墍娓緱鐨勮〃瑙€COD娓涘幓Gl-鐨勭悊璜朇OD鑰屽緱鍒版按妯ｇ殑瀵�(sh铆)娓珻OD锛屽嵆ρ(COD瀵�(sh铆)娓�)=ρ(COD琛ㄨ)-0.226×ρ锛圕l-锛�銆傛柟娉曟槸鍦ㄤ笉鍔犵～閰搁妧鍌寲鍔戠殑鎯呮硜涓嬶紝璁揅l-琚噸閴婚吀閴€瀹屽叏姘у寲锛岀劧鍚庡啀鎸夋(bi膩o)婧�(zh菙n)鏂规硶娑堣В姘存ǎ锛屽(sh铆)椹�(y脿n)琛ㄦ槑锛屽埄鐢ㄩ€欑ó瀹屽叏姘у寲鐨勬柟娉�锛孋l-鐨勬哀鍖栫巼鍦�99.5锛呬互涓�锛孋OD鐨勫(sh铆)娓€艰垏瀵�(sh铆)闅涘€煎叿鏈夎壇濂界殑涓€鑷存€5]锛屼笖鍙敤浜庨珮姘綆COD寤㈡按鐨勬脯瀹�锛屼絾鍓嶆彁鏄纰哄畾鍚堥仼鐨勯噸閴婚吀閴€婵冨害銆侀吀搴﹀拰鍥炴祦鏅�(sh铆)闁撶瓑瀵�(sh铆)椹�(y脿n)鍙冩暩(sh霉)锛屼互淇濊瓑Cl-鐨勫畬鍏ㄦ哀鍖�锛屽惁鍓囩祼(ji茅)鏋滄渻(hu矛)鏈夊緢澶х殑瑾ゅ樊銆�
1.3 浣庢績搴︽哀鍖栧姂娉�
銆€銆€涓€鑸€岃█锛屾哀鍖栧姂鐨勬績搴﹁秺澶�锛屽叾姘у寲鑳藉姏瓒婂挤(qi谩ng)锛屽湒1鐐哄湪HgSO4鑸嘋l-鐨勮唱(zh矛)閲忔瘮鐐�10锛�1鐨勫墠鎻愪笅锛岀敤涓嶅悓婵冨害K2Cr2O7锛屾哀鍖栧柈涓€Cl-鐨勭祼(ji茅)鏋淸6]锛屽彲瑕婥l-鍦ㄩ珮婵冨害姘у寲鍔戜腑鐨勬哀鍖栭噺姣斿湪浣庢績搴︽哀鍖栧姂涓ぇ寰楀锛屽洜姝ゅ湪娓畾鍚隘寤㈡按COD鏅�(sh铆)鍙噰鐢ㄤ綆婵冨害姘у寲鍔戜互娓涘皯Cl-鐨勫共鎿�銆備緥濡傚皪浜�ρ锛圕l-锛�<5000mg/L锛�ρ(COD)<400mg锛廘鐨勬按妯ｏ紝閲囩敤婵冨害鐐�0.05 mol锛廘鐨凨2Cr2O7婧舵恫锛屽苟绲�(ji茅)鍚堝浐楂擧gSO4鐨勬帺钄�锛岀祼(ji茅)鏋滅殑涓€鑷存€у拰鍙潬鎬у潎寰堝ソ[7]銆�