[1]朱文强,温学哲,林华丽,等.高盐低pH对Candida生物强化处理蜜饯废水的影响[J].中国给水排水,2025,41(15):125-134.
　ZHUWen-qiang,WENXue-zhe,LINHua-li,et al.Impact of High Salinity and Low pH on Candida Bioaugmentation for Candied Fruit Wastewater Treatment[J].China Water & Wastewater,2025,41(15):125-134.
点击复制

高盐低pH对Candida生物强化处理蜜饯废水的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第15期 页码: 125-134 栏目: 出版日期: 2025-08-01
Title:
Impact of High Salinity and Low pH on Candida Bioaugmentation for Candied Fruit Wastewater Treatment
作者:
朱文强1,2， 温学哲1,2， 林华丽1,2， 崔亮2， 董纯明1,2， 邵宗泽1,2， 王勇2
（1.福州大学 先进制造学院，福建 晋江 362251；2.自然资源部第三海洋研究所 海洋生物遗传资源重点实验室，福建 厦门 361005）
Author(s):
ZHU　Wen-qiang1，2， WEN　Xue-zhe1，2， LIN　Hua-li1，2， CUI　Liang2， DONG　Chun-ming1，2， SHAO　Zong-ze1，2， WANG　Yong2
（1. School of Advanced Manufacturing， Fuzhou University， Jinjiang 362251， China； 2. Key Laboratory of Marine Biogenetic Resources， Third Institute of Oceanography ， Xiamen 361005， China）
关键词:
蜜饯废水;  酸性高盐;  Candida;  生物强化;  微生物群落结构
Keywords:
candied fruit wastewater;  acidity and high salinity;  Candida;  bioaugmentation;  microbial community structure
摘要:
蜜饯废水是典型的酸性高盐废水，在实际处理中常需要加水稀释以降低盐度、加碱以调节pH，导致处理成本偏高。为此，利用序批式生物膜反应器（SBBR），以能在酸性高盐条件下生长良好并可提升废水pH的酵母菌Candida作为生物强化剂处理蜜饯废水，探讨不同pH和盐度条件下反应器的运行效能和微生物群落结构变化。结果表明，在3.5%盐度下，当初始pH=4.0时SBBR表现最佳，蜜饯废水经处理后pH升至6.0以上，COD、TIN、TP去除率分别可达到83.2%、72.2%、98.7%。在不同的初始pH条件下SBBR中形成独特的微生物群落结构，其中R1（pH=4.0，盐度=5.0%）和R4（pH=4.0，盐度=3.5%）中的优势菌属均为Pseudooceanicola和Candida，R2（pH=2.6，盐度=3.5%）中的优势菌属为Acidovorax和Zygoascus，R3（pH=3.3，盐度=3.5%）中的优势菌属为Oceanobacillus、Vibrio和Candida。环境因子关联性分析结果表明，pH是影响微生物群落结构的关键因素，盐度的增加则影响较小。物种相互作用网络揭示了细菌网络中Oceanobacillus和真菌网络中Rhodotorula的关键作用，在酸性高盐环境下细菌网络中共生和互惠是主要关系，而真菌网络中捕食和竞争是主要关系。
Abstract:
Candied fruit wastewater represents a typical acidic and high salinity effluent. In practical treatment processes, it is commonly required to dilute the wastewater to decrease salinity and add alkali for pH adjustment, both of which contribute to relatively high treatment costs. In this study, a sequencing batch biofilm reactor (SBBR) was employed, and Candida, a yeast capable of thriving under high salinity and acid conditions while effectively increasing the pH of wastewater, was utilized as a bioaugmentation agent for the treatment of candied fruit wastewater. The performance of the reactor and the change in microbial community structure under varying pH and salinity conditions were systematically investigated. At the salinity of 3.5%, SBBR system achieved optimal performance when the initial pH was set to 4.0. Following treatment, the pH of wastewater increased to above 6.0, while the removal efficiencies of COD, TIN, and TP reached 83.2%, 72.2%, and 98.7%, respectively. Under varying initial pH conditions, distinct microbial community structures were formed in the SBBR. Specifically, in R1 (pH 4.0 and salinity 5.0%) and R4 (pH 4.0 and salinity 3.5%), the dominant genera were both Pseudooceanicola and Candida. In R2 (pH 2.6 and salinity 3.5%), the dominant genera were Acidovorax and Zygoascus, while in R3 (pH 3.3 and salinity 3.5%), the dominant genera included Oceanobacillus, Vibrio, and Candida. The correlation analysis of environmental factors indicated that pH was the predominant factor affecting the structure of microbial communities, whereas the increase in salinity exerted a relatively minor influence. The species interaction network highlighted the pivotal roles of Oceanobacillus within the bacterial network and Rhodotorula within the fungal network. In the acidic and high salinity environment, symbiosis and reciprocity predominantly drove interactions in the bacterial network, whereas predation and competition were the primary relationships shaping the fungal network.
更新日期/Last Update: 2025-08-01