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Thien TQ, Trung PQ, Dao NM, Lan NTH, Tham VTM, Thang LX, Van Phuc N, Nghia NH, Anh TT, Hai PS, Vu CD. Investigation the grain size effect on multi-element concentration using statistical analysis of INAA and laser-diffraction data for estuarine sediments of Hau River, Vietnam. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08609-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ushani U, Kavitha S, Johnson M, Yeom IT, Banu JR. Upgrading the hydrolytic potential of immobilized bacterial pretreatment to boost biogas production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:813-826. [PMID: 27757748 DOI: 10.1007/s11356-016-7819-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
In this study, surfactant dioctyl sodium sulphosuccinate (DOSS)-mediated immobilized bacterial pretreatment of waste activated sludge (WAS) was experimentally proved to be an efficient and economically feasible process for enhancing the biodegradability of WAS. The maximal floc disruption with negligible cell cleavage was achieved at surfactant dosage of 0.009 g/g SS. Results of the outcome of bacterial pretreatment of sludge biomass revealed that chemical oxygen demand (COD) solubilization for deflocculated (EPS removed-bacterially pretreated) sludge was 20 %, which was higher than that of flocculated (14 %) or control (5 %). The pretreatment was swift in deflocculated sludge with a rate constant of about 0.064 h-1. Biochemical methane potential (BMP) assay resulted in significant methane yield at 0.24 gCOD/gCOD for deflocculated sludge. Economic assessment of the proposed method showed a net profit of about 57.39 USD/ton of sludge.
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Affiliation(s)
- U Ushani
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, 627007, India
| | - S Kavitha
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, 627007, India
| | - M Johnson
- St. Xavier College, Palayamkottai, Tirunelveli, India
| | - Ick Tae Yeom
- Department of Civil and Environment Engineering, Sungkyunkwan University, Seoul, South Korea
| | - J Rajesh Banu
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, 627007, India.
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Wu J, Dumat C, Lu H, Li Y, Li H, Xiao Y, Zhuang P, Li Z. Synergistic improvement of crop physiological status by combination of cadmium immobilization and micronutrient fertilization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:6661-6670. [PMID: 26645231 DOI: 10.1007/s11356-015-5888-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 11/26/2015] [Indexed: 06/05/2023]
Abstract
Wollastonite application in cadmium-contaminated soils can reduce cadmium concentrations in plant, while the side effect is the synchronous immobilization of micronutrients, which reduces micronutrient uptake in plant, inducing micronutrient deficient symptoms. Accordingly, we investigated whether the supplement of Zn and Mn fertilizers after the wollastonite addition could promote the growth and photosynthesis in amaranth (Amaranthus tricolor L.). In this study, plants were cultivated in cadmium-contaminated soil under micronutrient fertilization alone, wollastonite addition, and combination of wollastonite and micronutrient fertilization treatments. Then, plant biomass; photosynthesis parameters; and total Cd, Zn, and Mn concentrations were investigated. Moreover, chemical extractions were performed on soil samples. The results show that application of wollastonite decreased Cd, Zn, and Mn concentrations in plant and availability in soil and it increased the gas exchange ability of plants. But, it reduced the chlorophyll content in leaves and had no positive influence on plant biomass. In comparison, Zn and Mn fertilization after wollastonite application greatly increased plant biomass and photosynthetic ability. It also reduced Cd phytoavailability more efficiently. Therefore, synergistic improvement of physiological status of farmland crop by sequential treatment with first wollastonite for cadmium immobilization, and then micronutrient fertilization to avoid micronutrient deficiency, was demonstrated.
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Affiliation(s)
- Jingtao Wu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Camille Dumat
- Certop UMR CNRS 5044, Université Toulouse J. Jaurès - Toulouse II, 5 allée Antonio Machado, 31058, Toulouse Cedex 9, France
| | - Huanping Lu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China
| | - Yingwen Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China
| | - Hanqing Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China
| | - Yanhui Xiao
- College of Agricultural Science and Engineering, Shaoguan College, Shaoguan, 512005, China
| | - Ping Zhuang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road no.723, Tianhe District, Guangzhou, 510650, China.
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