Accumulation characteristics of and removal of nitrogen and phosphorus from livestock wastewater by Polygonum hydropiper

Zheng, Zicheng; Li, T.X.; Zeng, Fanjian; Zhang, X.Z.; Yu, Haiying; Wang, Y.D.; Liu, T.

doi:10.1016/j.agwat.2012.10.017

Cited by 41 publications

(17 citation statements)

References 31 publications

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“…The quantity of wastewater discharged by the livestock and poultry industry has increased continually along with development of the economy, and is characterized by high nitrogen (N) content. The discharge of livestock sewage will considerably increase the pollutant loads of the receiving water, thereby causing the eutrophication of water bodies and groundwater pollution . In previous works, some conventional biochemical methods have been used to decrease organic matter and suspended solids in livestock sewage, which rarely effectively remove high‐strength inorganic N. Therefore, the rational and economical treatment of livestock wastewater has become an urgent issue worldwide …”

Section: Introductionmentioning

confidence: 99%

Association of robust nitrogen removal with spatiotemporal nitrifying bacterial community dynamics in a new bioreactor for treatment of simulated livestock wastewater with high ammonia content

Zhang

Kong

Hua

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Different types of nitrogen‐containing wastewater have been treated with dewatered alum sludge (DAS) or neutralized used acid (NUA) or with a combined DAS–NUA biofilter. The connections between the spatiotemporal structures of ammonia‐oxidizing bacteria (AOB) and nitrite‐oxidizing bacteria (NOB) and the nitrogen removal performance of DAS–NUA biofilter have not been fully clarified. To address this issue, AOB and NOB genetic characteristics response to nitrogen conversions in a laboratory‐scale DAS–NUA biofilter were investigated. RESULTS The spatiotemporal distribution of the AOB in DAS was heterogeneous in the bioreactor. The trends observed in its structure were a function of depth along the flowpaths and time. However, AOB in NUA and NOB in both substrates were time and space independent. The spatial and temporal behavior of nitrifying bacteria mainly depended on the pH, followed by dissolved oxygen. The Shannon indexes of AOB and NOB and the relative abundances of Nitrosomonas and Nitrobacter had significantly negative relationships with NH+4–N and total nitrogen concentrations in effluents. CONCLUSIONS The Shannon indexes of AOB and NOB and the relative abundances of Nitrosomonas and Nitrobacter were the key indicators of nitrogen removal and have implications for effective nitrogen attenuation strategies. © 2018 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Association of robust nitrogen removal with spatiotemporal nitrifying bacterial community dynamics in a new bioreactor for treatment of simulated livestock wastewater with high ammonia content

Zhang

Kong

Hua

et al. 2018

J of Chemical Tech & Biotech

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“…Typha and Phragmites. Production of low cost roofing material and compost from macrophytes used in nutrient rich and sewage water treatment in constructed engineered wetland (Zhang et al 2014;Zheng et al 2013) …”

Section: Aquatic Biomassmentioning

confidence: 99%

Phytoremediation Crops and Biofuels

Prasad

2015

Sustainable Agriculture Reviews

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Environmental decontamination is an integral part of sustainable development. In recent years there has been growing interest in using plants for decontamination. On the other hand, water, soil and air are increasingly contaminated. Large amounts of toxic waste have been dispersed in thousands of contaminated sites spread all over the globe. These pollutants belong to two main classes: inorganic and organic. The challenge is to develop innovative and costeffective solutions to decontaminate polluted environment. Phytoremediation is emerging as an invaluable tool for environmental cleanup. Various strategies are being applied to reduce the accumulation of toxic metals in plants. Cultivation of edible crops in contaminated soils is a subject of human health concern if the contaminant concentration in the edible parts of crops plant exceed the permissible level. In such cases non-food crop production viz. value chain and value additions appears profitable. In this review: (1) the contamination due to industrial effluents in peri urban region of greater Hyderabad, and (2) the strategies to use contaminated soil and water for raising phytoremediation crops, and generation of value products. Crops and products include medicinal and aromatic plants, ornamental plants, biofuels, tree crops, fiber crops, dyes, and plants for carbon sequestration.

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“…where C 0 represents nutrient concentration at the beginning experiment while C i represents the nutrients concentration on the day which reading taken during the wet market wastewater treatment process [10]. Table 2 shows the characteristics of raw wastewater from Public Market Parit Raja compared to previous research by Zulkifli [2].…”

Section: ) Calculation Of Removal Efficiencymentioning

confidence: 99%

Removal of Nutrients and Selected Heavy Metals in Wet Market Wastewater by Using Microalgae <i>Scenedesmus </i>Sp.

Jais

Mohamed

Apandi

et al. 2015

AMM

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Abstract. The wet market wastewater may lead to pollution, odour and aesthetic problems to the environment and society if not treating properly. Thus, this research was conducted to culture microalgae Scenedesmus sp. and to identify the optimal concentration of microalgae Scenedesmus sp. due to the nutrient and heavy metal removals from wet market wastewater based on laboratory scale. The samples were taken from Public Market Parit Raja, Batu Pahat at 9a.m. in the morning as a peak hour operating stall using grab sampling technique. The characteristics of raw wastewater and microalgae Scenedesmus sp. were determined. There are five sample wastewater (used 625ml for each five sample wastewater) with five different samples concentration of microalgae which are 6.50x10 5 , 49.88x10 4 , 34.75x10 4 , 19.63x10 4 and 49.88x10 4 cell/ml with 16 days as duration for period study. The microalgae were cultured by BBM for eight days and another eight days for treatment with replicates three times for each sample. The analysis were measured due to the nutrient and heavy metal removals which are TN, TP, TOC, Fe and Zn during eight days treatment process. Based on experimental result, the optimum removal efficiency for each concentration were achieved 45.6-86.4% of nutrients and heavy metals. The highest amount of nutrient and heavy metal removals after wastewater treatment by microalgae are TN 74.77%, TP 82.17%, TOC 86.36%, Fe 65.76% and Zn 84.14%. As conclusion for this experiment, Sample 2 (concentration 49.88x10 4 cell/ml of microalgae Scenedesmus sp.) is the optimum concentration due to the highest percentage of nutrients and heavy metals removal which achieved 65.3-82.1% which TN 65.32%, TP 76.77%, TOC 80.34%, Fe 65.76% and Zn 82.12%. IntroductionIn Malaysia, the wet market activities contribute to unpleasant odour and dirty environment because the discharge were directly to the drainage without any treatment. This problem may lead to uncomfortable condition to buyers, sellers and residents at wet market area [1]. Moreover, the wastewater flow directly into drainage in that area may cause the drain clogged and the problem getting worst if no action taken by responsible person [2].Microalgae had been choose as new technology to treat wastewater because it cheap and easily to handle because of their capabilities during photosynthesis process and eutrophication if wastewater contains excessive amount of nitrogen and phosphorus which able to incorporate with some nutrients such nitrogen and phosphorus [3]. From previous studies, there still less information about wet market wastewater treatment using microalgae cause the researches were focused on special media from laboratory, municipal wastewater, industrial wastewater and animal wastewater [4,5]. From analysis findings, the best result analysis is from Korea where this research had been using microalgae Scenedesmus sp. to treat swine wastewater by fermentation process which involved aeration system for 7 days and from the results, the removal efficiency nutrient for TN wa...

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Accumulation characteristics of and removal of nitrogen and phosphorus from livestock wastewater by Polygonum hydropiper

Cited by 41 publications

References 31 publications

Association of robust nitrogen removal with spatiotemporal nitrifying bacterial community dynamics in a new bioreactor for treatment of simulated livestock wastewater with high ammonia content

Association of robust nitrogen removal with spatiotemporal nitrifying bacterial community dynamics in a new bioreactor for treatment of simulated livestock wastewater with high ammonia content

Phytoremediation Crops and Biofuels

Removal of Nutrients and Selected Heavy Metals in Wet Market Wastewater by Using Microalgae <i>Scenedesmus </i>Sp.

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