Vetiver and Dictyosphaerium sp. co-culture for the removal of nutrients and ecological inactivation of pathogens in swine wastewater

Wang, Xinjie; Ni, Xin; Cheng, Qilu; Xu, Li; Zhao, Yong; Zhou, Qifa

doi:10.1016/j.jare.2019.05.004

Cited by 36 publications

(6 citation statements)

References 46 publications

(59 reference statements)

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“…The synergistic effect of algae and aquatic plants may also be one of the reasons for the better removal effect of antibiotics. Xinjie et al [25] effectively reduced the high concentration of ammonia nitrogen and phosphorus in swine wastewater by co-culture of plants and algae, and obtained the following synergistic mechanism of algae and plants: common utilization of nutrients; plant root respiration leads to acidification of wastewater, which reduces ammonia toxicity; the consumption of bicarbonate by algae reduces the toxicity of bicarbonate to plants; the oxygen released by algae photosynthesis reduces hypoxia stress and promotes plant growth.…”

Section: Discussionmentioning

confidence: 99%

Removal of typical antibiotics from the symbiotic system of Microcystis aeruginosa and emergent plants

Lidan Pang,

Haidong Zhou,

Mengwei Li

et al. 2023

Environ. Protect. Eng.

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In a simulated urban river system, the conversion and distribution of six typical antibiotics were investigated under the following conditions: no plant, only Microcystis aeruginosa (algae) and algae combined with Juncus effusus, Cyperus alternifolius, and Acorus calamus. Through the calculation of the mass balance, the quantitative distribution of antibiotics in the water phase, sediment, Microcystis aeruginosa, and plant tissues, and the total elimination efficiency of the antibiotics were determined. The results showed that higher concentrations of sulfathiazole (STZ) and sulfamethoxazole (SMZ) were detected in the water phase of the non-plant group, which were 52.81% and 56.88%, respectively, and ciprofloxacin (CIP) and tetracycline (TCY) were detected higher in the sediment, up to 1562 ng/g and 1829 ng/g, respectively. The antibiotic removal rates have been greatly improved, and those in the system containing Microcystis aeruginosa were higher than that in the system without aquatic plants or algae. The calculation of the mass balance showed that the removal effect of algae combined with Juncus effusus was the best, and the removal rates (azithromycin (AZM) and clarithromycin (CLM)) were the highest, reaching 68.88% and 61.96%. It seems that algae and plants play an important role in the removal of antibiotics.

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Section: Discussionmentioning

confidence: 99%

Removal of typical antibiotics from the symbiotic system of Microcystis aeruginosa and emergent plants

Lidan Pang,

Haidong Zhou,

Mengwei Li

et al. 2023

Environ. Protect. Eng.

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“…Qu et al (2021) found the removal e ciency of NH 4 -N and TP (98.10-99.52% and 96.06-100%, respectively) from the swine wastewater by the treatment of microalgae-bacteria were far higher than that of microalgae-only (34.97-52.49% and 96.86-97.95%, respectively). Wang et al (2019) found the treated time need for the decrease of NH 4 -N and TP in the swine wastewater from 102 mg/L and 12 mg/L to < 5 mg/L and 2 mg/L by Dictyosphaerium sp-only were more than the double for Vetiver-Dictyosphaerium sp. The removal e ciency of TN, NH 4 -N, TP and COD from the piggery wastewater/digestate under the action of the microalgae is signi cantly lower than the combined action of microalga-bacteria, which had showed signi cantly attraction to the treatment of wastewater by microalgae-bacteria.…”

Section: Removal Of Nutrients and Metal Ionsmentioning

confidence: 96%

Cultivation of Spirulina platensis for nutrient removal from piggery wastewater

Liang

Zhang

Liu

et al. 2023

Environ Sci Pollut Res

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The discharge of livestock wastewater without treatment in depth severely harm to the environment and human health, cultivation microalgae as feedstock for biodiesel and animal feed additive using livestock wastewater coupling of the treatment of wastewater has become a research topic. In this study, the cultivation conditions of Spirulina platensis using piggery wastewater were optimized by response surface method, and the removal of nutrients from the piggery wastewater coupling of Spirulina platensis as the feedstock for animal feed additive was evaluation. The results of single factor experiments con rmed cupric ion seriously inhibited the growth of Spirulina platensis, while nitrogen, phosphorous and zinc all low promotes high inhabitation. Spirulina platensis grew well in the dilution piggery wastewater supplemented with moderate sodium bicarbonate, which indicated it is the limited nutrients. The OD 560 of S. platensi reached 1.83 at the optimal conditions proposed by response surface method as follows: piggery wastewater was diluted to 4 times, 7 g/L sodium bicarbonate, pH 10.5, initial OD 560 0.63, light intensity 3030 lux, light/dark 16/8 and cultured time 8 days. Spirulina platensis cultured in the diluted piggery wastewater contained 43.75% protein, 9.4% crude lipid, 8.826 mg/g chlorophyll, 4.18% total sugar, 27.7 mg/kg Cu and 246.2 mg/kg Zn. The analysis of the chemical compositions of Spirulina platensis indicated it can as the feedstock for animal feed additive. The removal e ciency of TN, TP, COD, Zn and Cu from the wastewater was 76%, 72%, 93.1%, 93.5% and 82.5%, respectively. These results demonstrated the removal of nutrients from piggery wastewater coupling culturing S. platensi as the feedstock for animal feed additive is feasible.

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“…In addition to being subjected to the autoclaved process, wastewater is usually diluted before being fed to microalgal cells. This is owed to a very high level of nutrients (e.g., >100 mg/L NH 4 + -N concentration) in wastewater that may inhibit algal growth [30,31]. This would lead to a low nutrient removal efficiency and biomass productivity.…”

Section: Selection Of Microalgae Based On Growth Performancementioning

confidence: 99%

Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production

et al. 2021

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Bio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel production. Two strains, Chlorella vulgaris FACHB-8 and Chlorella sp. FACHB-31, were selected based on their better growth performances, higher tolerance to wastewater (up to 100%), and better nutrient removal abilities. The capacity of each strain to remove TN, TP, NH4+-N, as well as lipid production and biomass composition in 100% ADSW were further examined. After 15 days of culture, 87.68~89.85%, 92.61~93.68%, and 97.02~97.86% of the nitrogen, phosphorus, and ammonia nitrogen were removed by Chlorella sp. FACHB-31 and C. vulgaris FACHB-8. Their lipid content and lipid productivities were 29.63~33.33% and 18.91~23.10 mg L−1 d−1, respectively. Proteins were both the major biomass fraction followed by lipids and then carbohydrates. Their fatty acid profiles both mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2. Taken together, our results suggest that C. vulgaris FACHB-8 and Chlorella sp. FACHB-31 are potential candidates for biodiesel production by using ADSW as a good feedstock.

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Vetiver and Dictyosphaerium sp. co-culture for the removal of nutrients and ecological inactivation of pathogens in swine wastewater

Abstract: Graphical abstract

Cited by 36 publications

References 46 publications

Removal of typical antibiotics from the symbiotic system of Microcystis aeruginosa and emergent plants

Removal of typical antibiotics from the symbiotic system of Microcystis aeruginosa and emergent plants

Cultivation of Spirulina platensis for nutrient removal from piggery wastewater

Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production

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