山东大学学报（工学版）
山東大學學報（工學版）
산동대학학보（공학판）
JOURNAL OF SHANDONG UNIVERSITY(ENGINEERING SCIENCE)
2015年
2期
82-88
,共7页
Fe(III)%强化生物除磷%化学除磷%动力学%高盐含磷废水%污水处理
Fe(III)%彊化生物除燐%化學除燐%動力學%高鹽含燐廢水%汙水處理
Fe(III)%강화생물제린%화학제린%동역학%고염함린폐수%오수처리
Fe(III)%enhanced biological phosphorus removal%chemical phosphorus removal%kinetics%high salinity wastewater containing phosphorus%wastewater treatment
从深海菌中筛选出一株高效除磷菌，并研究了铁强化此除磷菌在高盐合成废水中的除磷效能及机理。通过批次试验研究了铁磷物质的量比、初始 pH 值对除磷效率的影响以及铁强化生物除磷的动力学，并利用扫描电镜和能谱分析对微生物表面形貌进行了研究。结果表明，与单独铁盐和生物除磷相比，铁强化微生物除磷效率更高效且稳定在95％以上。当 n（Fe（III））∶n（P）＝1∶1时，铁强化微生物除磷的最大效率达98.50％，相比单纯生物除磷提高30％，而单独铁盐除磷 n（Fe（III））∶n（P）＝2∶1～3∶1时，除磷率仅90％；当 n（Fe（III））∶n（P）≤1∶1时，铁强化微生物除磷以微生物除磷为主，铁盐辅助，处理后水 pH 中性且稳定；当物质的量比 n（Fe（III））∶n（P）＞1∶1时，由于Fe（III）水解造成 pH 降低至5.50以下，微生物生长受抑，磷的去除主要靠化学沉淀。废水初始 pH 在6．0～9．0范围内，铁强化生物除磷去除率均在95％以上。准一级动力学模型能够很好地模拟生物除磷过程；准二级动力学模型能够很好地模拟铁强化生物除磷，且较长时间内无磷释放现象。铁强化生物除磷的机理包括：（1）细菌生长除磷以及胞外聚合物对磷的吸附；（2）在混合液中形成了羟基磷酸铁络合物；（3）在细菌表面形成了由细菌诱导的铁磷微沉淀。
從深海菌中篩選齣一株高效除燐菌，併研究瞭鐵彊化此除燐菌在高鹽閤成廢水中的除燐效能及機理。通過批次試驗研究瞭鐵燐物質的量比、初始 pH 值對除燐效率的影響以及鐵彊化生物除燐的動力學，併利用掃描電鏡和能譜分析對微生物錶麵形貌進行瞭研究。結果錶明，與單獨鐵鹽和生物除燐相比，鐵彊化微生物除燐效率更高效且穩定在95％以上。噹 n（Fe（III））∶n（P）＝1∶1時，鐵彊化微生物除燐的最大效率達98.50％，相比單純生物除燐提高30％，而單獨鐵鹽除燐 n（Fe（III））∶n（P）＝2∶1～3∶1時，除燐率僅90％；噹 n（Fe（III））∶n（P）≤1∶1時，鐵彊化微生物除燐以微生物除燐為主，鐵鹽輔助，處理後水 pH 中性且穩定；噹物質的量比 n（Fe（III））∶n（P）＞1∶1時，由于Fe（III）水解造成 pH 降低至5.50以下，微生物生長受抑，燐的去除主要靠化學沉澱。廢水初始 pH 在6．0～9．0範圍內，鐵彊化生物除燐去除率均在95％以上。準一級動力學模型能夠很好地模擬生物除燐過程；準二級動力學模型能夠很好地模擬鐵彊化生物除燐，且較長時間內無燐釋放現象。鐵彊化生物除燐的機理包括：（1）細菌生長除燐以及胞外聚閤物對燐的吸附；（2）在混閤液中形成瞭羥基燐痠鐵絡閤物；（3）在細菌錶麵形成瞭由細菌誘導的鐵燐微沉澱。
종심해균중사선출일주고효제린균，병연구료철강화차제린균재고염합성폐수중적제린효능급궤리。통과비차시험연구료철린물질적량비、초시 pH 치대제린효솔적영향이급철강화생물제린적동역학，병이용소묘전경화능보분석대미생물표면형모진행료연구。결과표명，여단독철염화생물제린상비，철강화미생물제린효솔경고효차은정재95％이상。당 n（Fe（III））∶n（P）＝1∶1시，철강화미생물제린적최대효솔체98.50％，상비단순생물제린제고30％，이단독철염제린 n（Fe（III））∶n（P）＝2∶1～3∶1시，제린솔부90％；당 n（Fe（III））∶n（P）≤1∶1시，철강화미생물제린이미생물제린위주，철염보조，처리후수 pH 중성차은정；당물질적량비 n（Fe（III））∶n（P）＞1∶1시，유우Fe（III）수해조성 pH 강저지5.50이하，미생물생장수억，린적거제주요고화학침정。폐수초시 pH 재6．0～9．0범위내，철강화생물제린거제솔균재95％이상。준일급동역학모형능구흔호지모의생물제린과정；준이급동역학모형능구흔호지모의철강화생물제린，차교장시간내무린석방현상。철강화생물제린적궤리포괄：（1）세균생장제린이급포외취합물대린적흡부；（2）재혼합액중형성료간기린산철락합물；（3）재세균표면형성료유세균유도적철린미침정。
An efficient phosphorus (P)removal bacterium strain was screened from deep-sea bacteria,and phosphorus removal efficiency and mechanism by iron enhanced biological treatment were studied in the high salinity synthetic wastewater.The effects of molar ratio Fe(III)/P,initial pH on phosphorus removal and kinetics of iron enhanced bio-logical phosphorus removal were investigated by batch tests,and the surface morphology of bacteria was studied by SEM-EDS (scanning electron microscopy-energy dispersive X-ray spectroscopy).Results showed that the phosphorus removal efficiency of iron enhanced biological treatment was high and stable at more than 95% compared to those of in-dependent iron and biological treatment.Removal efficiency of phosphorus reached the maximum of 98.5% with molar ratio of Fe(III)and P being 1,which increased 30% than that of the biological treatment,whereas the maximum phos-phorus removal was 90% with molar ratio of Fe(III)and P ranging from 2 to 3 by independent iron treatment.Phos-phorus removal was mainly ascribed to bacterial growth and aided by iron,and pH was kept stable at about 7.2 when molar ratio of Fe(III)and P being not more than 1.Phosphorus removal was mainly by chemical precipitation with mo-lar ratio of Fe(III)and P being more than 1 because that the pH reduced to 5.5 or even lower by Fe(III)hydrolysis and significantly influenced bacterial growth.Phosphorus removal was kept at above 95% at pH of 6 ~9 with molar ratio of Fe(III)and P being 1.The dynamic pseudo-first-order model could fit the biological phosphorus removal process well, and the pseudo-second-order model could well describe the iron enhanced biological phosphorus removal without phos-phorus releasing for a long time.Except the uptake of part of the phosphorus by bacterial growth and bio-sorption by ex-tracellular polymeric substance,the hydroxyl phosphate iron complex compound and iron phosphorus precipitation in-duced by bacterium also contributed to the phosphorus removal.
