Biological nutrient removal from slaughterhouse wastewater via nitritation/denitritation using granular sludge: an onsite pilot demonstration

Dobbeleers Thomas; Caluwé Michel; Dockx Lennert; Daens Dominque; Daes Jolien; Dries Jan

摘要

Abstract <section xml:id="jctb6212-sec-0001" numbered="no"> <title type="main">BACKGROUND >In this study, an onsite pilot sequencing batch reactor (SBR) of 450?L was operated at a local Flemish slaughterhouse in two consecutive periods. During period I, nitrogen removal via nitritation/denitritation (Nit/DNit) was achieved by the use of an innovative startup strategy without seed sludge and subsequently maintained by the use of aeration phase length control based on the oxygen uptake rate (OUR). In period II, the operational strategy was modified. In order to obtain Nit/DNit granular sludge (GS), an anaerobic (feast) feeding was introduced followed by a dynamic controlled (OUR‐based) aerobic (famine) reaction step. </section> <section xml:id="jctb6212-sec-0002" numbered="no"> <title type="main">RESULTS > After 74?days, the local (Flemish) legislation standards for COD (125?mg O <sub>2</sub> L ?1 ) and T‐N (15?mg N L ?1 ) were fulfilled. During period II, floccular sludge was partially transformed into GS, which resulted in increased COD and NH <sub>4</sub> ‐N conversion rates of 50 and 60% respectively. Average removal efficiencies for SCOD, N and P during period II were 89.5?±?4.2, 88.8?±?9.8 and 84.4?±?9.3% respectively. Despite the relatively low biomass concentrations (2.5 g?L ?1 ), excellent sludge settling was reported, with SVI <sub>30</sub> ?100?mL?g ?1 from day 167 onwards. Moreover, it was found that the operational strategy and temperature variability had a crucial impact on the microbial community dynamics and granule growth. </section> <section xml:id="jctb6212-sec-0003" numbered="no"> <title type="main">CONCLUSION >This study demonstrated the Nit/DNit BNR‐GS system in a real operational environment through the operation of an onsite pilot plant. ? 2019 Society of Chemical Industry </section> </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> <第XML：ID =“JCTB6212-SEC-0001”编号=“否”> <title type =“main”>背景</ title> 在本研究中，连续两个时期在局部佛兰芒屠宰场运行450μl的现场试验室测序批量反应器（SBR）。在期间I期间，通过使用无需种子污泥的创新的启动策略来实现通过亚硝酸/脱氮（NIT / DNIT）的氮气去除，并且随后通过基于氧气摄取率（我们）的曝气相长控制而维持。在期间II期间，修改了运营策略。为了获得NIT / DNIT粒状污泥（GS），引入厌氧（盛宴）进料，然后引入动态控制（我们的）有氧（饥荒）反应步骤。</ p> </部分> <第XML：ID =“JCTB6212-SEC-0002”编号=“否”> <标题类型=“main”>结果</ title> > 74天后，鳕鱼的当地（佛兰芒）立法标准（125？MG o <sub> 2 </ sub> L. ？1 </ sup> ）和t-n（15？mg n l ？1 </ sup> ）达成了。在期间II期间，絮状污泥部分转化为GS，导致COD和NH增加 <sub> 4 </ sub> -N分别为50％和60％的转换率。在期间II期间SCOD，N和P的平均去除效率为89.5？±4.2,88.8？±9.8和84.4？±9.3％。尽管生物量浓度相对较低（2.5克？L. ？1 </ sup> ），据报道了优秀的污泥沉降，SVI <sub> 30 </ sub> ＆？100？ml？g ？1 </ sup> 从第167天开始。此外，发现操作策略和温度变异性对微生物群落动态和颗粒生长具有至关重要的影响。 </ p> </部分> <第XML：ID =“JCTB6212-SEC-0003”编号=“否”> <标题类型=“main”>结论</ title> 本研究通过现场试验工厂的操作在真正的操作环境中展示了NIT / DNIT BNR-GS系统。还2019年化学工业学会</ p> </部分> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-33908/'>《Journal of Chemical Technology & Biotechnology》</a> <b style="margin: 0 2px;">|</b><span>2020年第1期</span><b style="margin: 0 2px;">|</b><span>共12页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dobbeleers Thomas&option=202" target="_blank" rel="nofollow">Dobbeleers Thomas;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Caluwé Michel&option=202" target="_blank" rel="nofollow">Caluwé Michel;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dockx Lennert&option=202" target="_blank" rel="nofollow">Dockx Lennert;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Daens Dominque&option=202" target="_blank" rel="nofollow">Daens Dominque;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Daes Jolien&option=202" target="_blank" rel="nofollow">Daes Jolien;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dries Jan&option=202" target="_blank" rel="nofollow">Dries Jan;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> <p>Research Group BioGEM Bio‐Chemical Green Engineering &</p> <p>Materials Faculty of Applied EngineeringUniversity of AntwerpAntwerp Belgium;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/180.html" title="生物工程学（生物技术）">生物工程学（生物技术）;</a><a href="https://www.zhangqiaokeyan.com/clc/20827.html" title="生物化学过程">生物化学过程;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Granular sludge&option=203" rel="nofollow">Granular sludge;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nutrient removal&option=203" rel="nofollow">nutrient removal;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=industrial wastewater&option=203" rel="nofollow">industrial wastewater;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=microbial ecology&option=203" rel="nofollow">microbial ecology;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=SBR&option=203" rel="nofollow">SBR;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=control strategy&option=203" rel="nofollow">control strategy;</a> </p> <div class="translation"> 机译：颗粒污泥;营养去除;工业废水;微生物生态;SBR;控制策略; </div> </li> </ul> </div> </div> <div class="literature 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