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SOUTHWESTWATER&WASTEWATERVol.33No.420111,,、,。、,。。2、KOH、IPA、、HF、HCl、H2SO4,IPA、。::。:HNO3、HF、H2SO4,。:。、PSG:HF,PN。PSG。(PECVD):PECVD。:。1(,214071),,,。IPA1HF15ppmHNO3,KOH,IPA100ppm4,179HF20ppm1000ppm5,615IPA15%200ppm251HNO3,HCl1%20%13.5(l/hr)HF(l/hr)IPA(l/hr)(l/hr)HF,HNO3HCl1%20%100HF(l/hr)(l/hr)KOH5%30%10!!!!!!!!!!!!!!!!!!!!12,PSGHF、HNO3、KOH、、KOH、HCl、H2SO4PECVD、HFHF25··SOUTHWESTWATER&WASTEWATERVol.33No.42011:,。、、:,。1。PSG、HF。,,:,。3,、。2。,。,IPA。3.1。,,。10~20mg/L。,、、、,,,,。、。、、、,Ca(OH)2,,。25℃,CaF216.5mg/L,F-8.03mg/L。CaF2,10mg/L。Ca(OH)22(、)NaOHCa(OH)2CaCl2Ca(OH)2pHpHROpHpHCa(OH)2pHpHpHpHDOpHpHCa(OH)2CaCl2Ca(OH)2CaCl226··SOUTHWESTWATER&WASTEWATERVol.33No.42011,,10mg/L。pH、、,。NaOHpH,CaCl2,NaOHpH,,。+。Ca(OH)2,CaCl2。Ca(OH)2pH,pH8.0~8.5[1],,CaCl2,2~3。,。,。、、,。,,。CaF2,,,,、,。,。3.2IPAIPAIPA。(IPA)。BOD5/CODCr0.6,COD。IPA25000mg/L,COD50000mg/L。IPAIPA1000mg/L,COD3000mg/L。,COD5000mg/L。IPA,。[2]、、,17~20℃,,98.5%,0.5%,82.2%,。,。IPAIPA,IPA,IPA,。IPA,,。BOD5/COD0.40,COD3000mg/L,。[3],BOD5/COD0.50,COD2000~3000mg/L,-,COD90%,BOD595%。IPA。,(UASB);、,,,,IPACOD70%,IPA。,[4]。,,。,IPA,,,,,,,,。3~5。3.3、、、;、,,。,,、、27··SOUTHWESTWATER&WASTEWATERVol.33No.42011。,3-2。、,pH,。。。pH2~3,,NaOHCa(OH)2pH7~8,Cr(OH)3,,Cr(OH)3。,NaOHCa(OH)2pH7~8,Cr(OH)3,Cr(OH)3。。。PAC、PFC,,。,[5]。3.4IPA、HF、HCl、NaOH。≤800mg/L,COD≤1000mg/L,,,。3.5,IPA,,,,,,,。。()、。,JR,,,,。,,,。70%~75%,,。,、、RO,70%。,。75%,75%×70%=52.5%,,50%,。:→→→→→→→→→→→。4:(1),,。(2),3H2SO4NaHSO3NaOHpH1pH228··SOUTHWESTWATER&WASTEWATERVol.33No.42011,,。,,。(3),,,,。(4),。,,。,,、,,,,。5,。,。1,,..[J].2008,24(6):28~30.2,..[J].2009,48(6):422-423.3,,.[J]..2000,20(6):3~6.4,.[J]..200935(4):116~119.5,,..[J].2004,37(9):42-43.—————————————△:214017730:13771118293E-mail:liuk@edri.cn△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△0(),,700(1000)。,1995,1。190,(,065000),、、,;,()、、。,++,,。+()29··
本文标题:硅太阳能电池生产线废水处理及回用工艺浅析
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