銆€銆€鎴戝湅(gu贸)鎸夊皪(du矛)姹℃煋鐗╃殑鎺掓斁婵冨害闄愬埗锛屽皣閹冲垪鍏ョ涓€椤�(l猫i)姹℃煋鐗╋紝鑰屼竴鑸殑鍖栧(xu茅)閸嶉幊寤㈡按涓惈Ni2+楂橀仈(d谩)骞剧櫨鍒板咕鍗僲g/L锛屽洜姝ょ爺绌跺寲瀛�(xu茅)閸嶉幊寤㈡按鐨勮檿鐞嗘妧琛�(sh霉)鍏锋湁閲嶈鎰忕京銆傜洰鍓嶅父鐢ㄧ殑鍚幊寤㈡按鐨勮檿鐞嗘柟娉曟湁鍖栧(xu茅)娌夋穩娉�銆侀洟瀛愪氦鎻涙硶銆佸惛闄勬硶銆侀浕婊叉瀽娉�銆佷腑鍜屾硶銆侀浕瑙ｆ硶绛夈€�1銆�銆傚叾涓惖姘ч珨娉曟槸鍖栧(xu茅)娌夋穩娉曚腑鐨勪竴绋�銆備絾鐩墠鍦�(gu贸)鍏�(n猫i)澶栨湁闂�(gu膩n)鍒╃敤閻垫哀楂旀硶铏曠悊楂樻績搴﹀寲瀛�(xu茅)閸嶉幊寤㈡按鐨勬噳(y墨ng)鐢ㄧ爺绌堕倓鏈(ji脿n)鍫�(b脿o)閬�銆�

銆€銆€閲濆皪(du矛)闈掑扯鏌愰浕瀛愬粻鐢�(ch菐n)鐢熺殑楂樻績搴﹀寲瀛�(xu茅)閸嶉幊寤㈡按锛岀瓎鑰呴噰鐢ㄩ惖姘ч珨娉曞皪(du矛)鍏堕€�(j矛n)琛屼簡闋�(y霉)铏曠悊鐮旂┒锛屽緸姝ｄ氦瀵�(sh铆)椹�(y脿n)鍜屽柈鍥犵礌鍎�(y艒u)鍖栧(sh铆)椹�(y脿n)2 鏂归潰鑰冨療浜唍锛團e2+锛夆埗n锛團e3+锛�銆乵锛團eSO4·7H2O锛夆埗m锛圢i2+锛夈€乸H銆佸弽鎳�(y墨ng)婧害鍜屾敧鎷屾檪(sh铆)闁撳皪(du矛)Ni2+鍘婚櫎鐜囩殑褰遍熆锛屼互鏈熺偤閻垫哀楂旀硶铏曠悊楂樻績搴﹀寲瀛�(xu茅)閸嶉幊寤㈡按鎻愪緵涓€瀹氱殑鐞嗚珫鍙冭€�銆�

銆€銆€1 瀵�(sh铆)椹�(y脿n)閮ㄥ垎

銆€銆€1.1 寤㈡按鐨勪締(l谩i)婧愬強鍩烘湰鎬ц唱(zh矛)

銆€銆€瀵�(sh铆)椹�(y脿n)鐢ㄥ虎姘翠締(l谩i)鑷北鏉遍潚宄舵煇闆诲瓙寤犲寲瀛�(xu茅)閸嶉幊寤㈡按锛屽叾鏃ユ帓鏀鹃噺鐐�700~800 L锛屽虎姘翠腑鐨勯幊涓昏浠ョ～閰搁幊鐨勫舰寮忓瓨鍦�銆傚虎姘存按璩�(zh矛)濡備笅锛歱H=4.7锛孨i2+鐐�4 212.5 mg/L锛孋OD 鐐�3.66×104 mg/L锛岃壊搴︾偤1 000鍊嶏紝寤㈡按椤忚壊鍛堟繁缍犺壊銆�

銆€銆€1.2 涓昏鍎€鍣ㄨ垏瑭﹀姂

銆€銆€鍎€鍣細pHS-3C 鍨嬫暩(sh霉)瀛梡H 瑷�(j矛)锛堜笂?锛熸。锜絰鍣ㄦ湁闄愬叕鍙革級锛汚LC-1100.2 鍨婣cculab 闆诲瓙澶╁钩锛堣辰澶氬埄鏂瀛�(xu茅)鍎€鍣ㄥ寳浜湁闄愬叕鍙革級锛汬H-2 鍨嬫暩(sh霉)椤亽婧按娴撮崑锛堝湅(gu贸)鑿浕鍣ㄦ湁闄愬叕鍙革級锛汿AS-986 鍨嬬伀鐒板師瀛愬惛鏀跺垎鍏夊厜搴﹁▓(j矛)锛堝崡浜槙鑸瀛�(xu茅)鍎€鍣ㄦ湁闄愬叕鍙革級锛汮J-1 瀹氭檪(sh铆)闆诲嫊(d貌ng)鏀媽鍣紙姹熻槆閲戝甯備腑澶у剙鍣ㄥ粻锛夈€�

銆€銆€瑭﹀姂锛歂aOH 锛圓R 绱�(j铆)锛�锛孎(xi脿n)eCl3·6H2O 锛圓R 绱�(j铆)锛�锛孎(xi脿n)eSO4·7H2O 锛圓R 绱�(j铆)锛�锛孒NO3锛圓R 绱�(j铆)锛�銆傚(sh铆)椹�(y脿n)鐢ㄦ按鍧囩偤钂搁ぞ姘淬€�

銆€銆€1.3 宸ヨ棟璺窔(xi脿n)

銆€銆€瀵�(sh铆)椹�(y脿n)宸ヨ棟娴佺▼濡傚湒1 鎵€绀�銆�

鍦�1 宸ヨ棟娴佺▼

銆€銆€1.4 瀵�(sh铆)椹�(y脿n)鏂规硶

銆€銆€鍙�100 mL 鍖栧(xu茅)閸嶉幊寤㈡按浜�250 mL 鐕掓澂涓紝鎶曟斁涓€瀹氶噺鐨凢eSO4·7H2O 鍥洪珨鍜孎eCl3·6H2O 鍥洪珨锛屾敧鎷�锛屽緟鍏舵憾瑙ｅ悗鍔犲叆164 g/L 鐨凬aOH 婧舵恫瑾�(di脿o)鏁村虎姘寸殑pH锛岀敤pH 瑷�(j矛)娓�(c猫)瀹歱H锛岀劧鍚庣珛鍗虫斁鍏ヤ竴瀹氭韩搴︾殑鎭掓韩姘存荡閸嬩腑銆傜敱浜庢鏅�(sh铆)閭勬湭瀹屽叏鍙嶆噳(y墨ng)锛岄渶瑕佸悓鏅�(sh铆)浣跨敤姗�(j墨)姊版敧鎷岃ō(sh猫)鍌欏皪(du矛)婧舵恫閫�(j矛n)琛屾敧鎷�锛岃綁(zhu菐n)閫熸帶鍒跺湪500 r/min銆傛敧鎷屼竴瀹氭檪(sh铆)闁撳悗锛岄潨缃€�1 h 鍚庨噰鐢ㄩ亷(gu貌)婵剧殑鏂规硶閫�(j矛n)琛屽浐娑插垎闆�銆傞噰鐢ㄥ師瀛愬惛鏀跺垎鍏夊厜搴︽硶娓�(c猫)瀹氭烤娑蹭腑鐨勯幊闆㈠瓙鍚噺锛涘皪(du矛)浜庡浐娑插垎闆㈢殑鍙嶆噳(y墨ng)娌夋福鍏堢敤钂搁ぞ姘村弽寰�(f霉)娓呮礂锛屼互闄ゅ幓娌夋福涓殑纭吀鏍癸紝鐒跺悗鍦�110 鈩冧笅鐑樺共锛岀敤纾侀惖纰哄畾鍏剁鎬у挤(qi谩ng)寮便€�

銆€銆€1.5 鍒嗘瀽鏂规硶

銆€銆€Ni2+閲囩敤鍘熷瓙鍚告敹鍒嗗厜鍏夊害娉曟脯(c猫)瀹�锛沺H 鐢眕H瑷�(j矛)鎺у埗锛涜壊搴﹂噰鐢ㄧ█閲嬪€嶆暩(sh霉)娉曟脯(c猫)瀹�锛涙韩搴︾敱鎭掓韩姘存荡閸嬫帶鍒讹紱褰㈡垚閻垫哀楂旂殑纾佹€у挤(qi谩ng)寮辩敱纾侀惖纰哄畾銆�2銆�銆�

銆€銆€2 绲�(ji茅)鏋滆垏瑷庤珫

銆€銆€2.1 姝ｄ氦瀵�(sh铆)椹�(y脿n)绲�(ji茅)鏋�

銆€銆€閻垫哀楂旀硶鍘婚櫎Ni2+鐨勪富瑕佸奖闊垮洜绱犳湁鍙嶆噳(y墨ng)婧害銆佹敧鎷屾檪(sh铆)闁�銆乸H銆乶 锛團e2+锛夆埗 n锛團e3+锛夊拰m锛團eSO4·7H2O锛夆埗m锛圢i2+锛�锛屽洜姝ょ⒑瀹氶噰鐢↙16锛�45锛夋浜ゅ(sh铆)椹�(y脿n)锛屼互Ni2+鍘婚櫎鐜囩偤瑭�(p铆ng)鍍�(ji脿)鎸囨(bi膩o)銆傚(sh铆)椹�(y脿n)绲�(ji茅)鏋滆(ji脿n)琛�1銆�

銆€銆€閫氶亷(gu貌)妤靛樊鍒嗘瀽寰楀嚭锛宲H 鏄渶涓昏鐨勫奖闊垮洜绱�锛屽叾浣�4 鍊�(g猫)鍥犵礌鐨勫奖闊跨浉灏�(du矛)杓冨皬锛岃捣寰(di脿o)浣滅敤銆傜敱浜庡師寤㈡按涓璑i2+鍚噺寰堥珮锛屽弽鎳�(y墨ng)姊濅欢绋嶅井璁婂寲锛屽嵆浣垮幓闄ょ巼鐩稿樊寰堝皬锛屽嚭姘碞i2+鍚噺涔熷彲鑳界浉宸咕鍗乵g/L 宸﹀彸銆傚洜姝ょ偤浜嗛仈(d谩)鍒版渶浣宠檿鐞嗘晥鏋�锛岄渶瑕佸皪(du矛)pH 鍙婂叾浠栧悇鍥犵礌閫�(j矛n)琛屽柈鍥犵礌鍎�(y艒u)鍖栧(sh铆)椹�(y脿n)锛屼互纰哄畾鏈€浣冲弽鎳�(y墨ng)姊濅欢銆�

銆€銆€2.2 鍠洜绱犲劒(y艒u)鍖栧(sh铆)椹�(y脿n)绲�(ji茅)鏋�

銆€銆€2.2.1 pH 鐨勫奖闊�

銆€銆€pH 灏�(du矛)閲嶉噾灞殑娌夋穩鏈夎憲闈炲父閲嶈鐨勫奖闊�锛岀敱浜庢憾娑蹭腑OH-鍙冭垏浜嗙敓鎴愰惖姘ч珨鐨勫弽鎳�(y墨ng)锛屽洜姝ゆ憾娑茬殑pH 鐩存帴褰遍熆鍒板嚭姘翠腑鐨凬i2+婵冨害銆備互164 g/L NaOH婧舵恫浣滅偤pH 瑾�(di脿o)绡€(ji茅)鍔戯紝鍦╩锛團eSO4·7H2O锛夆埗m锛圢i2+锛�=19锛屽弽鎳�(y墨ng)婧害鐐�30 鈩�锛宯锛團e2+锛夆埗n锛團e3+锛�=0.6锛屾敧鎷屾檪(sh铆)闁撶偤15 min 鐨勬浠朵笅锛岃€冨療pH 灏�(du矛)Ni2+鍘婚櫎鐜囩殑褰遍熆锛岀祼(ji茅)鏋滆(ji脿n)鍦�2銆�

銆€銆€琛�1 姝ｄ氦瀵�(sh铆)椹�(y脿n)绲�(ji茅)鏋�

 鍦�2 pH 灏�(du矛)Ni2+鍘婚櫎鐜囩殑褰遍熆

銆€銆€寰炲湒2 鍙互鐪嬪嚭锛屽弽鎳�(y墨ng)楂旂郴鐨刾H 灏�(du矛)Ni2+鍘婚櫎鐜囨湁寰堝ぇ鐨勫奖闊�銆傞毃钁梡H 鐨勫澶�锛孨i2+鍘婚櫎鐜囦篃闅ㄤ箣澧炲ぇ锛屼絾鑰冩叜鍒皃H 閬�(gu貌)楂�锛屼笉浣嗗師鏂欐秷鑰楀澶ц€屼笖鏈�(hu矛)灏�(d菐o)鑷村嚭姘磒H 閬�(gu貌)楂�锛屽洜姝ょ⒑瀹氭渶浣冲垵濮媝H 鐐�10锝�11锛岄€欐ǎ鍙⒑淇濆嚭姘磒H 鍦�8.5~9.5 涔嬮枔銆傚彟澶�锛屽湪瀵�(sh铆)椹�(y脿n)涓倓鐧�(f膩)鐝�(xi脿n)锛岀暥(d膩ng)pH≤9.5 鏅�(sh铆)锛岀敓鎴愮殑娌夋穩鐗╁鐐鸿榛冭壊鎴栨榛冭壊锛屾矇娣€閲忓锛屾矑(m茅i)鏈夌鎬э紝涓旈绮掔窗(x矛)灏�锛屽浐娑插垎闆㈠洶闆�锛涜€岄毃钁梡H 澧炲ぇ锛屽嚭鐝�(xi脿n)浜嗛粦鑹叉矇娣€锛屽浐娑插垎灞ゆ槑椤紝娌夋穩鐐洪绮掔媭楂樼鎬ч惖姘ч珨銆傞€欐槸鐢变簬Fe锛圤H锛�3鐢熸垚鐨刾H 鐐�2.0 宸﹀彸锛孎(xi脿n)e 锛圤H锛�2鐢熸垚鐨刾H 鐐�5.5 宸﹀彸銆�3銆�锛屽湪閰告€у寲瀛�(xu茅)閸嶉幊寤㈡按涓姞鍏e2+鍜孎e3+鍚�锛岄鍏堢敓鎴怓e锛圤H锛�3娌夋穩锛岄毃钁梡H 鐨勫澶�锛岄€愭几鐢熸垚Fe锛圤H锛�2娌夋穩锛岀暥(d膩ng)pH 澧炲ぇ鍒�6.5 鏅�(sh铆)锛屾墠闁�(k膩i)濮嬬敓鎴怤i锛圤H锛�2娌夋穩锛屽悓鏅�(sh铆)锛岄€欎簺鑶犻珨鏈�(hu矛)灏�(du矛)Ni2+鐢�(ch菐n)鐢熷惛闄勪綔鐢�锛屼娇涔嬩竴璧锋矇娣€锛屼絾鏄鏅�(sh铆)鐨勬矇娣€骞朵笉鏄惖姘ч珨銆傚彟澶栫敱浜庡姞鍏ョ殑Fe3+姣擣e2+澶�锛屽洜姝ょ敓鎴愮殑娌夋穩鍛堟榛冭壊銆傝€岀暥(d膩ng)pH≥9.5 鏅�(sh铆)锛岄€欑ó鑶犻珨鐨勫惛闄勪綔鐢ㄩ€愭几娓涘皬锛孨i锛圤H锛�2鐨勬矇娣€鍔犲挤(qi谩ng)锛屽苟鑸嘑e锛圤H锛�2鍜孎e锛圤H锛�3褰㈡垚鍥烘憾楂旓紝闅ㄨ憲鍙嶆噳(y墨ng)鏅�(sh铆)闁撳欢闀�(zh菐ng)鑰岃綁(zhu菐n)璁婃垚灏栨櫠鐭冲瀷榛戣壊閻垫哀楂�锛屾矇娣€璁�?y艒u)妤硅皬顏�?銆曘€�

銆€銆€2.2.2 m锛團eSO4·7H2O锛夆埗m锛圢i2+锛夌殑褰遍熆鍦ㄥ弽鎳�(y墨ng)閬�(gu貌)绋嬩腑锛孨i2+浠ｆ浛Fe2+閫�(j矛n)鍏ラ惖姘ч珨鍏潰楂旂┖浣�锛岀敓鎴怤iFe2O4寰�(f霉)鍚堥惖姘ч珨銆傚(sh铆)椹�(y脿n)鑰冨療浜嗗湪pH=10.5锛宯锛團e2+锛夆埗n锛團e3+锛�=0.6锛屽弽鎳�(y墨ng)婧害鐐�30 鈩�锛屾敧鎷屾檪(sh铆)闁撶偤15 min 鐨勬浠朵笅锛屼笉鍚宮锛團eSO4·7H2O锛夆埗m锛圢i2+锛夊皪(du矛)Ni2+鍘婚櫎鐜囩殑褰遍熆锛岀祼(ji茅)鏋滆(ji脿n)鍦�3銆�

鍦�3 m锛團eSO4·7H2O锛夆埗m锛圢i2+锛夊皪(du矛)Ni2+鍘婚櫎鐜囩殑褰遍熆

銆€銆€寰炲湒3 鍙互鐪嬪嚭锛岄毃钁楁姇鏂欐瘮鐨勫澶�锛屽虎姘翠腑Ni2+鍘婚櫎鐜囬€愭几鍗囬珮銆傜暥(d膩ng)鎶曟枡姣旂偤19 鏅�(sh铆)锛孨i2+鍘婚櫎鐜囬仈(d谩)鍒�99.66%锛岀辜绾�(x霉)澧炲ぇ鎶曟枡姣旓紝鍘婚櫎鐜囪畩鍖栦笉澶�锛岀稖鍚堣€冩叜锛岄伕鍙栨渶浣虫姇鏂欐瘮鐐�21銆傚(sh铆)椹�(y脿n)涓倓鐧�(f膩)鐝�(xi脿n)锛氶毃钁楁姇鏂欐瘮鐨勫澶�锛屽舰鎴愮殑娌夋穩椤忚壊閫愭几鐢辨榛冭壊璁�?y艒u)妤硅皬?锛岄绮掕秺渚�(l谩i)瓒婄窗(x矛)锛屼笖鏈変竴瀹氱殑纾佹€э紝瑾�(shu艒)鏄庡叾涓昏鎴愬垎鐐洪惖姘ч珨銆傚湪铏曠悊閬�(gu貌)绋嬩腑锛屽(sh铆)闅涗簽閻垫姇鍔犻噺姣旂悊璜栨姇鍔犻噺澶э紝鍒嗘瀽鍏跺師鍥�锛屽彲鑳芥槸鐢变簬鍦ㄥ弽鎳�(y墨ng)閬�(gu貌)绋嬩腑鏈夐儴鍒咶e2+琚哀鍖�锛屽彟澶栫敓鎴愮殑閮ㄥ垎Fe锛圤H锛�2娌夋穩鐒�(w煤)娉曞弮鑸囧埌閻垫哀楂旂殑鍙嶆噳(y墨ng)涓紝鑰屾槸浠ユ矇娣€鐨勫舰寮忔瀽鍑�锛屽洜姝ら渶瑕佹姇鍏ヨ冻澶犵殑Fe2+锛岄€氶亷(gu貌)鐢熸垚澶ч噺鐨勬矇娣€鎵嶈兘浣縉i2+瀹屽叏鍙嶆噳(y墨ng)銆傚洜姝ゅ皪(du矛)浜庝笉鍚岀殑鍚幊闆婚崓寤㈡按锛屾姇鏂欐瘮涔熶笉鍚�锛岄渶缍�(j墨ng)瀵�(sh铆)椹�(y脿n)纰哄畾銆�