Treatment of Effluents from Fish and Shrimp Aquaculture in Constructed Wetlands

Tepe, Yalçın; Temel, Fulya Aydın

doi:10.1002/9781119268376.ch5

Cited by 5 publications

(4 citation statements)

References 97 publications

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“…Giá trị COD trong nước thải nuôi tôm và nước thải nuôi cá sau các thời gian lưu khác nhau (3,5,9,11,12 Khả năng loại bỏ chất hữu cơ của các loài thực vật thủy sinh như rong đuôi chồn, cói và dệu đã được công bố ở một số nghiên cứu trước đây. Nghiên cứu của Abbasi và cộng sự (2019) cho thấy cây dệu có khả năng loại bỏ chất hữu cơ hiệu quả (sau 10 ngày thí nghiệm, giá trị COD giảm 80% trong mẫu nước thải sinh hoạt (COD đầu vào: 600 mg/L) [6].…”

Section: Hiệu Quả Xử Lý Chất Hữu Cơ (Cod)unclassified

Study on Aquaculture Wastewater Treatment by Aquatic Plants

Phuong,

Hung,

Kha

et al. 2023

EES

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The aquaculture sector is fast developed in Vietnam, whereas untreated water pollution remains an issue. This study used three aquatic plant species, namely Ceratophyllum demersum, Alternanthera paronychioides, and Cyperus corymbosus to treat aquaculture wastewater in Quang Ninh. In the experiment with shrimp farming wastewater, after 16 days of experiment, the results showed C. demersum had the highest ability to remove organic matter (COD) up to 95.2% and the removal efficiency of NH4+-N reached 96.3%, whereas the removal efficiency of organic matter (COD) and NH4+-N of A. paronychioides were 90.5% and 97%, respectively; the removal efficiency of organic matter (COD) and NH4+-N of C. corymbosus were 66.7% and 81.8%, respectively. In the experiment with fish farming wastewater, C. corymbosus had the highest ability to remove organic matter (COD) up to 96% and the removal efficiency of NH4+-N reached 100%, the removal efficiency of organic matter (COD) and NH4+-N of A. paronychioides were 91.8% and 86%, respectively; the removal efficiency of organic matter (COD) and NH4+-N of C. demersum were 83.7% and 76.4%, respectively; whereas in the control sample, the removal efficiency of organic matter (COD) and NH4+-N were only 34.7% and 56%, respectively. In the experiment with shrimp farming wastewater, NO3--N treatment efficiency in the C. corymbosus, C. demersum and A. paronychioides system was 76.1%, 78.7% and 82%, respectively after 3 days of experiment, however NO3--N concentration gradually increased until the 16th day. In the experiment with fish farming wastewater, NO3--N concentration gradually increased during 16 experimental days in systems using three aquatic plants (NO3--N < 3 mg/L at the end of the experiment). The results prove the ability to treat organic matter and ammonium of C. demersum, A. paronychioides and C. corymbosus, however, further studies need to be conducted to limit the increase of NO3--N concentration in aquaculture wastewater treatment. Keywords: wastewater, aquaculture, aquatic plants.

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Section: Hiệu Quả Xử Lý Chất Hữu Cơ (Cod)unclassified

Study on Aquaculture Wastewater Treatment by Aquatic Plants

Phuong,

Hung,

Kha

et al. 2023

EES

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“…Jurisdictional-level regulations and initiatives are critical for responsible intensification beyond the individual farm-level, given the high degree of surface water connectivity between most farms, which can affect water quality and disease prevalence [116,117]. Sustainable aquaculture practices must adopt effective and affordable wastewater treatment processes to address the full range of environmental risks as the sector grows and intensifies [118], taking into account physical, production, ecosystem, and social carrying capacities [119].…”

Section: Water Quality Criteriamentioning

confidence: 99%

A nature-based solutions approach to managing shrimp aquaculture effluent

Goto,

Corwin,

Farthing

et al. 2023

PLOS Sustain Transform

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While coastal habitat conversion was a primary environmental concern in Asia for the mostly extensive shrimp aquaculture sector in previous decades, the transition towards intensive production is creating new environmental risks, primarily water quality impacts from nutrient-rich effluent. There is a need to compare the performance of conventional and Nature-based Solution (NbS) effluent treatment options given the increasing nutrient loads from more intensive aquaculture and historic loss of ecosystem services from mangrove deforestation. This study evaluates the potential for common and emerging effluent treatment systems to address total nitrogen and total phosphorus effluent from shrimp farms across a spectrum of production intensities. Nutrient waste loading for four stocking density scenarios (7PLm-2, 20PLm-2, 75PLm-2, and 120PLm-2) are estimated to compare the treatment efficiency, economic feasibility, spatial requirements, and ecosystem service provision of conventional and NbS effluent treatment systems. We use secondary data to assess effluent treatment systems applicable for shrimp aquaculture in Asia. Findings provide the conceptual framework for comparing the characteristics and tradeoffs of aquaculture effluent treatment systems. Constructed mangrove wetlands are an NbS approach that can meet the intensification needs of aquaculture producers and reduce negative impacts from aquaculture effluent at competitive costs, while also providing ecosystem service co-benefits.

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“…Constructed wetland (CW) is one of the most promising methods for dealing with aquaculture effluents as it possesses some advantages, such as low cost, ecological benefit and ease of operation and maintenance (Tepe, 2018;Hang Pham et al, 2021). When integrated with special matrix and aquatic plants, CW can effectively remove many types of contaminants from wastewater, including organic matter, N, P, suspended solids, heavy metals and pathogenic microorganism through the coordinated action of biological, physical and chemical processes (Almuktar et al, 2018;Wang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Treating performance of a commercial-scale constructed wetland system for aquaculture effluents from intensive inland Micropterus salmoides farm

Jia

Hou

et al. 2022

Front. Mar. Sci.

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In intensive inland fish farming, discharge of untreated effluents adversely affects adjacent water bodies and causes water pollution. Thus, it is highly necessary to treat the effluents from inland fish farm. In this study, we built a commercial-scale integrated constructed wetland (CW) system with vertical subsurface flow, and monitored the purifying effect. During fish farming and discharge of effluents periods, the water samples were collected to detected the total nitrogen (TN), total phosphorus (TP), ammonia nitrogen (NH4+-N), nitrate nitrogen (NO3--N), nitrite nitrogen (NO2--N) and chemical oxygen demand (CODMn). Results showed that the system was stable and significantly improved water quality from fish pond. During the fish farming period, the removal efficiency for TN, TP, NH4+-N, NO3--N, NO2--N, and COD was 24.93–43.72%, 61.92–72.18%, 56.29–68.63%, 56.66–64.81%, 56.42–64.19% and 28.37–42.79%, respectively. Similarly, these parameters were also markedly decreased by the integrated CW system during sewage discharge period, and the average total removal rate for TN, TP, NH4+-N, NO3--N, NO2--N, and COD was 50.24%, 64.48%, 61.36%, 62.65%, 56.16% and 37.32%, respectively. It was worth noting that three key parameters for effluents detection TN, TP and COD values were below the threshold values of water quality of Class II in freshwater sewage discharge standard of China (SCT9101-2007). In conclusion, this study evidently demonstrated that application of CW system was an environmental sustainable sewage treatment strategy in intensive inland fish farming.

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Treatment of Effluents from Fish and Shrimp Aquaculture in Constructed Wetlands

Cited by 5 publications

References 97 publications

Study on Aquaculture Wastewater Treatment by Aquatic Plants

Study on Aquaculture Wastewater Treatment by Aquatic Plants

A nature-based solutions approach to managing shrimp aquaculture effluent

Treating performance of a commercial-scale constructed wetland system for aquaculture effluents from intensive inland Micropterus salmoides farm

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