Characteristics of contaminants in water and sediment of a constructed wetland treating piggery wastewater effluent

Lee, So‐Young; Maniquiz, Marla C.; Kim, Lee-Hyung

doi:10.1016/s1001-0742(09)60202-3

Cited by 38 publications

(24 citation statements)

References 11 publications

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“…The two most common forms of N in wetlands are organic and inorganic. Organic N is made up of a variety of compounds, including amino acids, urea and uric acid, and purines and Constructed wetlands (CWs) are rapidly becoming a viable method for wastewater treatment worldwide [7], because of their similarity to natural wetlands and the fact that they cost less to construct, implement, and maintain than other types of treatments [8,9]. Constructed wetlands can be used to prevent water eutrophication [10].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Removal in a Horizontal Subsurface Flow Constructed Wetland Estimated Using the First-Order Kinetic Model

Cui

Zhang

et al. 2016

Water

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Abstract:We monitored the water quality and hydrological conditions of a horizontal subsurface constructed wetland (HSSF-CW) in Beijing, China, for two years. We simulated the area-based constant and the temperature coefficient with the first-order kinetic model. We examined the relationships between the nitrogen (N) removal rate, N load, seasonal variations in the N removal rate, and environmental factors-such as the area-based constant, temperature, and dissolved oxygen (DO). The effluent ammonia (NH 4 + -N) and nitrate (NO 3 − -N) concentrations were significantly lower than the influent concentrations (p < 0.01, n = 38). The NO 3 − -N load was significantly correlated with the removal rate (R 2 = 0.96, p < 0.01), but the NH 4 + -N load was not correlated with the removal rate (R 2 = 0.02, p > 0.01). The area-based constants of NO 3 − -N and NH 4 + -N at 20 • C were 27 ± 26 (mean ± SD) and 14 ± 10 m·year −1 , respectively. The temperature coefficients for NO 3 − -N and NH 4 + -N were estimated at 1.004 and 0.960, respectively. The area-based constants for NO 3 − -N and NH 4 + -N were not correlated with temperature (p > 0.01). The NO 3 − -N area-based constant was correlated with the corresponding load (R 2 = 0.96, p < 0.01). The NH 4 + -N area rate was correlated with DO (R 2 = 0.69, p < 0.01), suggesting that the factors that influenced the N removal rate in this wetland met Liebig's law of the minimum.

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Section: Introductionmentioning

confidence: 99%

Nitrogen Removal in a Horizontal Subsurface Flow Constructed Wetland Estimated Using the First-Order Kinetic Model

Cui

Zhang

et al. 2016

Water

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“…Additionally two valuable matters, salt and sweet water can be produced. Total hardness and turbidity of wastewater must be reduced during pretreatment process of wastewater to produce Sodium Chloride salt [7,8]. Coagulants are the matters used to decrease total hardness of wastewater.…”

Section: Introductionmentioning

confidence: 99%

Empirical Investigation of Treatment Process of Outlet Waste Water from Petroleum Industries

Farahbod¹

2017

JABB

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“…Additionally two valuable matters, salt and sweet water can be produced. Total hardness and turbidity of wastewater must be reduced during pretreatment process of wastewater to produce Sodium Chloride salt [3,6]. Coagulants are the matters used to decrease total hardness of wastewater.…”

Section: Introductionmentioning

confidence: 99%

The Parametric survey on the nano particles performance for treating of industrial wastewater

Zarei¹,

Farahbod²

2017

Oil Gas Res

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The techniques of wastewater treatment have been considered, recently. The performance of usage of nano ferric oxide and aluminum oxide as coagulant is evaluated in this work, experimentally. The experiments were conducted to measure the important parameters in quality of treatment by addition of four different amounts of nano two metal oxides 1, 1.5, 2 and 2.5 g. The value of pH, color, color/color0, zeta potential, slug volume index, total dissolved solids conductivity, turbidity, ammonia, sulfide, heavy metals, phenol, oil and grease is investigated. The results show the better performance of nano ferric oxide in coagulation and flocculation by lower amount of zeta potential, ammonia, phenol and sulfide and oil, grease elimination than aluminum oxide. However the value of slug volume index in treated wastewater by nano ferric oxide is higher than that is obtained with nano aluminum oxide.

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Characteristics of contaminants in water and sediment of a constructed wetland treating piggery wastewater effluent

Cited by 38 publications

References 11 publications

Nitrogen Removal in a Horizontal Subsurface Flow Constructed Wetland Estimated Using the First-Order Kinetic Model

Nitrogen Removal in a Horizontal Subsurface Flow Constructed Wetland Estimated Using the First-Order Kinetic Model

Empirical Investigation of Treatment Process of Outlet Waste Water from Petroleum Industries

The Parametric survey on the nano particles performance for treating of industrial wastewater

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