Organic carbon release, denitrification performance and microbial community of solid-phase denitrification reactors using the blends of agricultural wastes and artificial polymers for the treatment of mariculture wastewater
文献类型： 外文期刊
作者： Cui, Hongwu 1 ; Feng, Yuna 1 ; Yin, Zhendong 1 ; Qu, Keming 1 ; Wang, Lu 3 ; Li, Jiaxin 1 ; Jin, Tongtong 1 ; Bai, Ying 1 ; Cui, Zhengguo 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China
2.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Natl Expt Teaching Demonstrat Ctr Aquat Sci, Shanghai 201306, Peoples R China
3.Laoshan Lab, Qingdao 266237, Peoples R China
4.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China
5.Zhejiang Ocean Univ, Sch Marine Sci & Technol, Zhoushan 316022, Peoples R China
6.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China
关键词： Biodegradable polymer; Carbon release characteristics; Denitrification potential; Marine recirculating aquaculture wastewater
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.8； 五年影响因子：6.9 ）
ISSN： 0147-6513
年卷期： 2023 年 255 卷
页码：
收录情况： SCI
摘要： This paper explored the possibility of heterotrophic denitrification driven by composite solid carbon sources in low carbon/nitrogen ratio marine recirculating aquaculture wastewater. In this study, two agricultural wastes, reed straw (RS), corn cob (CC) and two artificial polymers, polycaprolactone (PCL), poly3-hydroxybutyrate-hydroxypropionate (PHBV) were mixed in a 1:1 ratio to compare the carbon release characteristics of the four composite carbon sources (RS+PCL, RS+PHBV, CC+PCL, and CC+PHBV) and their effects on improving the mariculture wastewater for denitrification. Dissolved organic carbon (DOC) after carbon source release (4.96-1.07 mg/g), total organic carbon/chemical oxygen demand (1.9-0.79) and short-chain fatty acids (SCFAs) (4.23-0.21 mg/g) showed that all the four composite solid carbon sources had excellent organic carbon release ability, and the CC+PCL group had the highest release of DOC and SCFAs. Energy-dispersive X-ray spectroscopy, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to observe the changes in the surface characteristics of the composite carbon source before and after application. And results showed that the stable internal structure enabled CC+PCL group to have continuous carbon release performance and ach-ieved the maximum denitrification efficiency (93.32 %). The NRE results were supported by the abundance of the Proteobacteria microbial community at the phylum level and Marinobacter at the genus level. Quantitative real-time PCR (q-PCR) indicated CC-containing composite carbon source groups have good nitrate reduction ability, while PCL-containing composite carbon source groups have better nitrite reduction level. In conclusion, the carbon source for agricultural wastes and artificial polymers can be used as an economic and effective solid carbon source for denitrification and treatment of marine recirculating aquaculture wastewater.
- 相关文献
作者其他论文 更多>>
-
Physiological and transcriptomic analysis reveals the toxic and protective mechanisms of marine microalga Chlorella pyrenoidosa in response to TiO2 nanoparticles and UV-B radiation
作者：Zhu, Lin;Feng, Sulan;Sun, Xuemei;Sui, Qi;Chen, Bijuan;Qu, Keming;Xia, Bin;Zhu, Lin;Sun, Xuemei;Sui, Qi;Chen, Bijuan;Xia, Bin;Feng, Sulan;Li, Yu
关键词：Nanomaterials; UV-B; RNA sequencing; Internalization; Molecular mechanism
-
Assessment of mariculture-derived microplastic pollution in Dapeng Cove, China
作者：Xu, Yong;Li, Shilin;Chen, Jianlei;Cui, Zhengguo;Xu, Yong;Li, Shilin;Chen, Jianlei;Cui, Zhengguo;Li, Shilin
关键词：Microplastic; abundance; mariculture; Fourier Transform Infrared microscope (micro-FTIR); Dapeng Cove
-
TLR21 is involved in the NF-κB and IFN-β pathways in largemouth bass (Micropterus salmoides) and interacts with TRIF but not with the Myd88 adaptor
作者：Gao, Fengying;Dong, Junjian;Li, Jiaxin;Zhu, Zhilin;Zhang, Hetong;Sun, Chengfei;Ye, Xing;Gao, Fengying;Dong, Junjian;Li, Jiaxin;Zhu, Zhilin;Zhang, Hetong;Sun, Chengfei;Ye, Xing;Li, Jiaxin;Zhu, Zhilin
关键词：TLR21; Largemouth bass ( Micropterus salmoides ); Myd88; TRIF; NF-kappa B; IFN-beta
-
Environmental controls on the seasonal variations of diatoms and dinoflagellates in the Qingdao coastal region, the Yellow Sea
作者：Wang, Qingxuan;Yang, Qian;Zhu, Lin;Cui, Zhengguo;Qu, Keming;Wei, Yuqiu;Wang, Qingxuan;Yang, Qian;Zhu, Lin;Cui, Zhengguo;Qu, Keming;Wei, Yuqiu;Wang, Qingxuan;Wei, Yuqiu
关键词：Diatoms; Dinoflagellates; Seasonal variation; Environmental control; Yellow sea
-
Vision-based dual network using spatial-temporal geometric features for effective resolution of fish behavior recognition with fish overlap
作者：Zhao, Haixiang;Zhao, Haixiang;Qu, Keming;Cui, Zhengguo;Zhu, Jianxin;Li, Hao;Cui, Hongwu;Wu, Yuankai;Qu, Keming;Cui, Zhengguo;Zhu, Jianxin;Li, Hao;Cui, Hongwu;Cui, Hongwu
关键词：Fish behavior recognition; Fish state recognition; Spatial-temporal graph convolutional networks; Slowfast networks; Micropterus salmoides
-
Temperature and nutrients drive distinct successions between diatoms and dinoflagellates over the past 40 years: Implications for climate warming and eutrophication
作者：Wei, Yuqiu;Luan, Qingshan;Shan, Xiujuan;Cui, Hongwu;Qu, Keming;Cui, Zhengguo;Wei, Yuqiu;Luan, Qingshan;Shan, Xiujuan;Cui, Hongwu;Qu, Keming;Cui, Zhengguo;Sun, Jun;Cui, Zhengguo
关键词：Diatoms; Dinoflagellates; Temperature; Nutrient; Succession; Bohai Sea
-
Effect of hydraulic retention time on denitrification performance and microbial communities of solid-phase denitrifying reactors using polycaprolactone/corncob composite
作者：Cui, Hongwu;Feng, Yuna;Lu, Weibin;Li, Hao;Teng, Yu;Bai, Ying;Qu, Keming;Song, Yingying;Cui, Zhengguo;Cui, Hongwu;Wang, Lu;Li, Hao;Bai, Ying;Qu, Keming;Cui, Zhengguo;Lu, Weibin;Teng, Yu;Song, Yingying
关键词：Polycaprolactone/corncob composite; Solid -phase denitrification; Hydraulic retention time; Bacterial community
