化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2015年
2期
300-305
,共6页
刘春爽%李甲国%闫来洪%赵东风%马斌%李祥%王爱杰
劉春爽%李甲國%閆來洪%趙東風%馬斌%李祥%王愛傑
류춘상%리갑국%염래홍%조동풍%마빈%리상%왕애걸
废水%硫化物%环境%厌氧%厌氧氨氧化%硫氮同步脱除%单质硫
廢水%硫化物%環境%厭氧%厭氧氨氧化%硫氮同步脫除%單質硫
폐수%류화물%배경%염양%염양안양화%류담동보탈제%단질류
waste water%sulfide%environment%anaerobic%ANAMMOX%sulfide,nitrate and ammonia removal%elemental sulfur
在HRT为12 h,温度为30℃±2℃,进水pH为7.5,进水硫化物、硝酸盐氮和氨氮浓度分别为50~90 mg S·L?1,22~35 mg N·L?1和22~35 mg N·L?1条件下,能够实现氨氮、硝酸盐氮和硫化物3类污染物的同步去除,去除率分别达到97.3%、92.8%和99%以上,而且去除的硫化物主要以单质硫形式存在,单质硫理论转化率达89%以上。间歇实验结果表明,S2?的存在能够促进 NO?3-N、NH+4-N 的同步去除。研究结果为含硫含氮废水的生物处理技术的发展提供了新思路。
在HRT為12 h,溫度為30℃±2℃,進水pH為7.5,進水硫化物、硝痠鹽氮和氨氮濃度分彆為50~90 mg S·L?1,22~35 mg N·L?1和22~35 mg N·L?1條件下,能夠實現氨氮、硝痠鹽氮和硫化物3類汙染物的同步去除,去除率分彆達到97.3%、92.8%和99%以上,而且去除的硫化物主要以單質硫形式存在,單質硫理論轉化率達89%以上。間歇實驗結果錶明,S2?的存在能夠促進 NO?3-N、NH+4-N 的同步去除。研究結果為含硫含氮廢水的生物處理技術的髮展提供瞭新思路。
재HRT위12 h,온도위30℃±2℃,진수pH위7.5,진수류화물、초산염담화안담농도분별위50~90 mg S·L?1,22~35 mg N·L?1화22~35 mg N·L?1조건하,능구실현안담、초산염담화류화물3류오염물적동보거제,거제솔분별체도97.3%、92.8%화99%이상,이차거제적류화물주요이단질류형식존재,단질류이론전화솔체89%이상。간헐실험결과표명,S2?적존재능구촉진 NO?3-N、NH+4-N 적동보거제。연구결과위함류함담폐수적생물처리기술적발전제공료신사로。
Simultaneous removal of nitrate, sulfide and ammonia could be realized at HRT of 12 h, temperature of 30℃±2℃and influent pH of 7.5. The removal rates were up to 95%, 90% and 99% for ammonia, nitrate and sulfide at influence concentrations of 22—35 mg N·L?1, 22—35 mg N·L?1 and 50—90 mg S·L?1, respectively. Most of sulfide removed was converted to elemental sulfur (S0) and the conversion rate was as high as 89%. Batch experiment results indicated that presence of sulfide could enhance simultaneous removal of nitrate and ammonia. The results of this study provided an innovative idea for the development of sulfide- and nitrogenous contaminants-laden wastewater treatment technology.