A Review on the Applications of Ozonation for the Treatment of Real Agro-Industrial Wastewaters

Martins, Rui C.; Quinta‐Ferreira, Rosa M.

doi:10.1080/01919512.2013.842158

Cited by 29 publications

(11 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, much attention is given to the treatment of agro-industrial wastewaters due to their growing pollution potential arising out of the fast industrialization and multiple anthropogenic activities. Uncontrolled discharge of wastewaters into the environment will pose detrimental effects to humans, animals, and plants [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…However, several other agro-industries such as fruit processing, coffee, dairy, palm oil and pulp mill industries, are also arising as important agricultural activities in different countries, thus requiring to be addressed. These activities are the biggest water consumers among the industrial sector which is reflected in the emergence of a significantly environmental problem related to wastewater generated along different production steps [1]. The wastewaters are characterized by their large pollutant load which represents a real issue to the surrounding environment when discharged without proper treatment.…”

Section: Introductionmentioning

confidence: 99%

“…Water 2019, 11, x FOR PEER REVIEW 2 of 31 significantly environmental problem related to wastewater generated along different production steps [1]. The wastewaters are characterized by their large pollutant load which represents a real issue to the surrounding environment when discharged without proper treatment.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of Advanced Oxidation Processes for the Treatment of Recalcitrant Agro-Industrial Wastewater: A Review

Amor

Marchão

Lucas

et al. 2019

Water

184

View full text Add to dashboard Cite

Agro-industrial wastewaters are characterized by the presence of multiple organic and inorganic contaminants of environmental concern. The high pollutant load, the large volumes produced, and the seasonal variability makes the treatment of these wastewaters an environmental challenge. A wide range of wastewater treatment processes are available, however the continuous search for cost-effective treatment methods is necessary to comply with the legal limits of release in sewer systems and/or in natural waters. This review presents a state-of-the-art of the application of advanced oxidation processes (AOPs) to some worldwide generated agro-industrial wastewaters, such as olive mill, winery and pulp mill wastewaters. Studies carried out just with AOPs or combined with physico-chemical or biological treatments were included in this review. The main remarks and factors affecting the treatment efficiency such as chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total organic carbon (TOC), and total polyphenols removal are discussed. From all the studies, the combination of processes led to better treatment efficiencies, regardless the wastewater type or its physico-chemical characteristics.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of Advanced Oxidation Processes for the Treatment of Recalcitrant Agro-Industrial Wastewater: A Review

Amor

Marchão

Lucas

et al. 2019

Water

184

View full text Add to dashboard Cite

show abstract

“…In this ambit, advanced oxidation processes are promising technologies to reduce the environmental impact of these effluents [5,10] and to promote water recovery from effluents [11,12]. Among them, ozonation [13] and Fenton´s process [14] show interesting potential for the treatment of OMW.…”

Section: Of 17mentioning

confidence: 99%

Detoxification of Olive Mill Wastewaters by Fenton’s Process

et al. 2018

View full text Add to dashboard Cite

Olive mill wastewaters (OMW) constitute an environmental problem affecting mainly Mediterranean Sea area countries where the olive mill industry is a very important economic sector. The strong impact and management issues of these effluents are mainly due to their seasonality, localized production, and high organic load with high toxic features and low biodegradability. As the olive oil industry is highly water demanding, the search for suitable water recovery strategies requires the development and optimization of advanced treatment technologies. The classical Fenton’s process is an interesting alternative, as it operates at room conditions of pressure and temperature. However, it shows some drawbacks, such as the generation of iron sludges, which require further management. Nevertheless, because of its features that make it industrially desirable, overcoming these limitations has been the focus of researchers in the last years. Bearing this in mind, this paper focuses on the recent research regarding OMW treatment using Fenton’s process. The use of Fenton’s peroxidation treatment at homogenous, heterogeneous, and photo-aided conditions is analysed. The use of solid catalysts may be an interesting way to avoid sludge formation. Light-driven Fenton can also reduce the amount of iron needed for effective degradation. Moreover, Fenton’s process integration in combined treatment schemes is discussed. Finally, remarks regarding its application at full scale are given.

show abstract

“…The traditional biological treatment systems present unsatisfactory results when applied to the degradation of effluents that have a high amount of bio refractory compounds (such as effluents from agri-food industries) and the development of chemical oxidation strategies becomes necessary (Martins and Quinta-Ferreira, 2014).…”

Section: Introductionmentioning

confidence: 99%

DOF/DAF comparison for the treatment of milk industry wastewater

et al. 2020

View full text Add to dashboard Cite

The objective of this study was to evaluate the efficiency of dissolved ozone flotation (DOF) in comparison to dissolved air flotation (DAF) for treatment of milk industry wastewater (MW). In the first phase of the experiment, a synthetic milk wastewater (SMW) was used to evaluate DOF and DAF, with and without addition of hydrogen peroxide, at pH 4.0 and pH 11.4. In the DOF tests, the concentration of ozone was equal to 19 (± 0.5) mg L-1 and in the tests with addition of hydrogen peroxide, the H2O2/O3 ratios tested were 0.5, 1.0 and 1.5. In the second phase, tests were performed using three MW from three different industries to validate the results obtained and to determine the DOF system's ability to treat this type of effluent. The parameters tested during validation were turbidity, total suspended solids, oils and greases (O&G), chemical oxygen demand (COD), biochemical oxygen demand (BOD), total nitrogen (TN) and total phosphorus (TP). It was observed that the efficiency of the treatments was better at pH 4.0. The results showed a reduction of the efficiency with the use of DOF. The addition of H2O2 in DAF and DOF also resulted in reduced system efficiency. The results obtained with SMW only approximated those obtained with the MW from one of the industries that contained the largest traces of milk and cheese.

show abstract

A Review on the Applications of Ozonation for the Treatment of Real Agro-Industrial Wastewaters

Cited by 29 publications

References 88 publications

Application of Advanced Oxidation Processes for the Treatment of Recalcitrant Agro-Industrial Wastewater: A Review

Application of Advanced Oxidation Processes for the Treatment of Recalcitrant Agro-Industrial Wastewater: A Review

Detoxification of Olive Mill Wastewaters by Fenton’s Process

DOF/DAF comparison for the treatment of milk industry wastewater

Contact Info

Product

Resources

About