Constructed wetlands for winery wastewater treatment: A comparative Life Cycle Assessment

Flores, Laura; García, Joan; Pena, Rocío; Garfí, Marianna

doi:10.1016/j.scitotenv.2018.12.348

Cited by 99 publications

(62 citation statements)

References 27 publications

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“…In addition to the potential economic benefit from the sale of wetland plants [81], the use of aesthetically pleasing vegetation might be beneficial to wineries where tourism is important. Additionally, SVFCWs are substantially more energy-efficient than activated sludge [7]. Further, the characteristics of the discharged wastewater from SVFCWs are comparable to or better than wastewater treated by conventional methods, such as activated sludge [82].…”

Section: Discussionmentioning

confidence: 99%

“…These 150 wineries bottle more than 11.3 million liters (>3 million gallons) of wine annually [5]. It is estimated that, for every liter of wine produced, 2.86-4 L of wastewater is generated [6,7], which suggested that Michigan produced 45.4 million liters (12 million gallons) of winery wastewater in 2018.…”

Section: Introductionmentioning

confidence: 99%

“…Historically, onsite treatment of winery wastewater at small wineries has been accomplished by land application [6], but stricter regulations have increased the land that is needed for treatment, reducing that available for vineyards. Currently, activated sludge systems represent the majority of treatment systems at European wineries [6], but they are complex to operate for small wineries and are expensive due to high energy use [7,9]. Emerging treatment systems for winery wastewater include membrane bioreactors, jet-loop activated sludge, and air micro-bubble reactors, as summarized in Mosse et al (2011) [9].…”

Section: Introductionmentioning

confidence: 99%

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Treatment of Winery Wastewater Using Bench-Scale Columns Simulating Vertical Flow Constructed Wetlands with Adsorption Media

et al. 2020

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Wastewater produced during the wine-making process often contains an order of magnitude greater chemical oxygen demand (COD) concentration than is typical of domestic wastewater. This waste stream is also highly variable in flow and composition due to the seasonality of wine-making. The recent growth of small-scale wineries in cold climates and increasing regulations present a need for low-cost, easily-operable treatment systems that do not require large amounts of land, yet maintain a high level of treatment in cool temperatures. This research investigates the use of a subsurface vertical flow constructed wetland (SVFCW) to treat winery wastewater. In this study, clinoptilolite, tire chips, and a nano-enhanced iron foam were used to enhance bench-scale gravel cells to adsorb ammonia, nitrate, and phosphorus, respectively. The treatment systems, without nitrogen adsorption media, performed well, with >99% removal of COD and 94% removal of total nitrogen. Treatment systems with the nitrogen adsorption media did not enhance nitrogen removal. Equilibrium was reached within two weeks of start-up, regardless of prior inoculation, which suggests that microbes present in the winery wastewater are sufficient for the start-up of the wastewater treatment system; therefore, the seasonality of winery wastewater production will not substantially impact treatment. Operating the treatment systems under cool temperatures did not significantly impact COD or total nitrogen removal. Further, the use of nano-enhanced iron foam exhibited 99.8% removal of phosphorus, which resulted in effluent concentrations that were below 0.102 mg/L P.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Treatment of Winery Wastewater Using Bench-Scale Columns Simulating Vertical Flow Constructed Wetlands with Adsorption Media

et al. 2020

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“…For this reason, biological treatment has been examined in combination with other methods, mainly advanced oxidation processes, as pre-treatment or post-treatment steps [16,37]. CWs have been used for the treatment of WW [38][39][40][41][42][43], but their use as an integrated treatment solution for all winery wastes (wastewater, slurry sludge, solid wastes, etc.) has not been thoroughly studied or implemented.…”

Section: Introductionmentioning

confidence: 99%

Biotreatment of Winery Wastewater Using a Hybrid System Combining Biological Trickling Filters and Constructed Wetlands

2020

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The objective of this work was to determine the ability of a pilot-scale hybrid system to treat real (non-synthetic) winery wastewater. The experimental treatment system consisted of two stages: An attached growth pilot-scale bioreactor (biological trickling filter with plastic support material) was initially used to remove a significant amount of dissolved chemical oxygen demand (d-COD) from winery wastewater, and then a pilot-scale, horizontal subsurface flow constructed wetland (CW) was examined as a post-treatment step for further d-COD removal. Results from the biofilter revealed that the recirculation rate of 1.0 L/min lead to higher d-COD removal rates than that of 0.5 L/min for all feed d-COD concentrations tested (3500, 7500, 9000 and 18,000 mg d-COD/L). Experiments in the CW were performed using feed d-COD concentrations of about 1500 mg/L (equivalent to biofilter effluent when initial filter feed d-COD concentrations are 18,000 mg/L). The wetland polishing stage managed to further remove d-COD and produced effluent concentrations below current legislation limits for safe disposal. Furthermore, the presence of zeolite in CW (one third of the length of CW) enhanced ammonium removal. The experimental results indicate that the combination of a biological trickling filter and a constructed wetland could effectively treat effluents originating from small wineries typical of the Mediterranean region.

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“…Technologies that can effectively treat WWW have recently been investigated; however, the majority of these focus on emerging technologies at the bench‐ and pilot‐scale . In terms of on‐site treatment, the majority of wineries utilize simple aerobic biological treatment technologies, while constructed wetland (CW) treatment systems are gaining in popularity and have been found to minimize environmental impacts associated with WWW treatment as compared to more conventional activated sludge systems . However, regional assessments of actual full‐scale practices are lacking in the literature, making it difficult to obtain an understanding of regional strategies in place to address WWW treatment needs.…”

Section: Introductionmentioning

confidence: 99%

Winery wastewater management and treatment in the Niagara Region of Ontario, Canada: A review and analysis of current regional practices and treatment performance

Johnson

Mehrvar

2019

Can J Chem Eng

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The winemaking process produces a large volume of wastewater with highly variable characteristics. Methods in place to manage winery wastewater (WWW) vary, with some wineries treating their WWW on‐site, while others direct the WWW to municipal wastewater treatment plants (WWTPs). Despite the significant presence and growth of the wine industry in the Niagara Region of Ontario, Canada, few data are available regarding the characteristics and treatment of WWW in this geographic region. This work presents a comprehensive review of full‐scale treatment methods currently in place to manage and treat WWW at 53 wineries in the Niagara Region. The most common type of on‐site treatment is the constructed wetland process, providing overall removal rates of >98% for chemical oxygen demand (COD) and >98% for total suspended solids (TSS) for the combined treatment of WWW and site‐generated sanitary sewage. Subsurface effluent discharge is the most widely used disposal strategy, while larger systems treating WWW alone also reuse the effluent for vineyard irrigation. The construction and operation of on‐site treatment systems at wineries does not address all WWW treatment needs, requiring a portion of the WWW to be co‐treated at WWTPs. While full‐scale operating data indicate that anaerobic co‐digestion with municipal sludges is effective (89% COD removal), the co‐digestion capacity is limited. Co‐treatment in the municipal WWTPs' liquid treatment train leads to negative operational and performance impacts. No efficient WWW co‐treatment options, viable in the long‐term, are currently available at municipal WWTPs. Improved co‐treatment strategies are required to address WWW treatment needs in the Niagara Region.

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Constructed wetlands for winery wastewater treatment: A comparative Life Cycle Assessment

Cited by 99 publications

References 27 publications

Treatment of Winery Wastewater Using Bench-Scale Columns Simulating Vertical Flow Constructed Wetlands with Adsorption Media

Treatment of Winery Wastewater Using Bench-Scale Columns Simulating Vertical Flow Constructed Wetlands with Adsorption Media

Biotreatment of Winery Wastewater Using a Hybrid System Combining Biological Trickling Filters and Constructed Wetlands

Winery wastewater management and treatment in the Niagara Region of Ontario, Canada: A review and analysis of current regional practices and treatment performance

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