Application of Constructed Wetlands for Treatment of Wastewater From Fruit and Vegetable Industry

Puchlik, Monika

doi:10.12911/22998993/61201

Cited by 11 publications

(12 citation statements)

References 6 publications

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“…Depending on wastewater generation place, following can be distinguished: raw material washing, cleaning, peeling, blanching, cooling (water after cooling), filling. The composition and amount of wastewater also depend on: the type, quality, settings, and size of dishwashers, type and origin of the raw material [6,7]. Wastewater generated during production of fruit concentrates are characterized by a pH values at the range from 5.8 to 9.4 and the COD value from 1 030 up to 5 630 mgO 2 /dm 3 [8].…”

Section: Characteristics Of Raw Sewage From the Fruit And Vegetable Amentioning

confidence: 99%

Comparison of the composition of wastewater from fruit and vegetables as well as dairy industry

Puchlik

Struk-Sokołowska

2017

E3S Web Conf.

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Abstract. The aim of the study was to compare the composition of wastewater from the facility producing fruit and vegetable juices and dairy processing plant in Podlasie province. Their composition is also influenced by processes of washing and disinfecting of production lines. The washing process moves solid, colloidal, and dissolved impurities to the wastewater, depending on the type of raw material processed and the technological process used. At the same time, cleaning and disinfecting components at the amounts difficult to determine, penetrate the wastewater. The seasonal oscillations in the quantity and quality of sewage composition originating from fruit-vegetable and dairy processing became a problem for many conventional wastewater treatment plants, to where they are discharged. Based on the survey, it was found that wastewater from the fruit and vegetable industry as well as dairy industry contained large amounts of organic matter expressed in BOD 5 (fruits and vegetables processing from 860 to 3 200mg O 2 /dm 3 , dairy from 1 410 to 3 850 mgO 2 /dm 3 ) and COD (fruits and vegetables processing from 919 to 3 700 mgO 2 /dm 3 , dairy from 1 680 to 5 420 mgO 2 /dm 3 ). Significant differences were found in concentrations of nitrogen and phosphorus in compared raw wastewater.

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Section: Characteristics Of Raw Sewage From the Fruit And Vegetable Amentioning

confidence: 99%

Comparison of the composition of wastewater from fruit and vegetables as well as dairy industry

Puchlik

Struk-Sokołowska

2017

E3S Web Conf.

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“…Waste water contamination varied from 1500 to 11 800 mg O2·l -1 . Constructed wetlands with the horizontal subsurface flow also showed acceptable quality values of the treated waste water at the output (Soroko, 2003;2011;Navarro et al, 2013;Puchlik, 2016). Efficiency of the organic matter removal there varied in the range from 34 to 67 % for BOD5 and from 31 to 64 % for CODCr depending on the loading 254 rates and composition of the organic substances.…”

Section: Resultsmentioning

confidence: 99%

Contamination of the Root Vegetables Wash Water and Its Treatment Efficiency

Dapkienė

Sabienė

Radzevičius

2018

Proccedings of International Scientific Conference "RURAL DEVELOPMENT 2017"

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Growing volume of washed vegetables in Europe and Lithuania means that more drinking water is consumed and more wastewater is produced. Farmers, who engage in washing vegetables, face the problems of wastewater treatment, wastewater storage and utilization. Wastewater released to the environment from their farms would meet hygiene and environmental protection criteria. The aim of the study was to assess the contamination of the root vegetable wash water and to evaluate the possiblity of cleaning of wastewater in the land-based treatment system consisting of one constructed wetland and two biological ponds. The contamination of wastewater, produced by washed root vegetables, in Lithuanian farms was measured according to suspended solids (SS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen and total phosphorus. Pollution of the wash water and wastewater was evaluated comparing the mean values with legislative limit values and with typical sewage contamination values. In all farms wastewater of initial root vegetables washing was treated in settling basins. Wastewater of one carrots washing farm was treated in the land-based wastewater treatment system consisting of surface flow constructed wetland and two biological ponds. Efficiency of the wastewater treatment in this system was according to suspended solids 90%, BOD7 -97%, CODCr -92%, total nitrogen -98% , total phosphorus -97%. The result shows, that the natural wastewater treatment system is suitable for farms, that wash and produce vegetables, but before releasing wastewater to the environment, it has to be settled.

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“…In opinion of Nawirska (2007), wastewater generated in fruit and vegetable industry facilities are characterized by high amounts of carbohydrates and minerals as well as variable composition depending on the raw material and season [3,12,14]. Its composition is also affected by washing and line disinfection processes [15]. Washing introduces solid, colloid, and dissolved contaminants into the wastewater, which is dependent on the type of raw material processed, but also on technological process applied.…”

Section: Characteristics Of Raw Wastewater From Fruit and Vegetable Imentioning

confidence: 99%

“…Depending on the site of wastewater generation, following stages can be distinguished: raw material washing, purification, peeling, blanching, cooling (post-cooling medium), or filling. Composition and amounts of wastewater also depend on: type, quality, setup and size of a washer, type and origin of raw material [15,16]. Wastewater generated during fruit concentrates production is characterized by reaction from 5.8 to 9.4 along with COD value from 1 030 to 5 630 mgO2/dm 3 [17].…”

Section: Characteristics Of Raw Wastewater From Fruit and Vegetable Imentioning

confidence: 99%

“…These levels depend on production technology and currently processed raw material [17]. Wastewater from fruit and vegetable processing is deficient in nitrogen and its main contaminant is organic substance [10,15). According to literature, the BOD5 value can amount from 500 to 5 000 mgO2/ dm 3 , whereas during the production season, it even exceeds 5 000 mgO2/dm 3 [10,[18][19][20].…”

Section: Characteristics Of Raw Wastewater From Fruit and Vegetable Imentioning

confidence: 99%

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Seasonal changes in quality of wastewater from fruit and vegetable industry

Puchlik

Ignatowicz

2017

E3S Web Conf.

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Abstract. The paper aimed at evaluating the seasonal changes in quality of wastewater from facilities producing fruit and vegetable juices, processed and frozen products, and vegetable concentrates. The study revealed that wastewater from fruit and vegetable industry contain large amounts of organic substances expressed as BOD5 (minimum -500 mgO2/dm 3 , maximum -6 100 mgO2/dm 3 ) and COD (minimum -806 mg O2/dm 3 , maximum -7 732 mg O2/dm 3 ), while is deficient in nitrogen and phosphorus. Considerable seasonal oscillations in sewage load disposed by industry to sewerage, were observed. An increase of 50%-60% wastewater concentrations was found between June and October in 2013-2016 as compared to the remaining months.

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Application of Constructed Wetlands for Treatment of Wastewater From Fruit and Vegetable Industry

Cited by 11 publications

References 6 publications

Comparison of the composition of wastewater from fruit and vegetables as well as dairy industry

Comparison of the composition of wastewater from fruit and vegetables as well as dairy industry

Contamination of the Root Vegetables Wash Water and Its Treatment Efficiency

Seasonal changes in quality of wastewater from fruit and vegetable industry

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