Membrane filtration, activated sludge and solar photocatalytic technologies for the effective treatment of table olive processing wastewater

Aldana, Juan C.; Acero, Juan L.; Álvarez, Pedro M.

doi:10.1016/j.jece.2021.105743

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…Data in the literature are scarce, but similar values have been reported in studies on wastewater of an analogous nature. For instance, Aldana and coworkers reported a 20% COD elimination rate and 50% turbidity removal using effluent from a black table olive processing plant [14]. Ferrer-Polonio et al found a negligible COD reduction after applying commercial coagulants to wastewater from the production of green table olives; however, these authors used very low doses of the coagulants-flocculants tested [15].…”

Section: Preliminary Coagulation-flocculation Stagementioning

confidence: 99%

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Table Olive Manufacturing Wastewater Treatment Using the Peroxymonosulfate/Fe(III) System

Rivas,

Beltrán,

Gimeno

2024

Catalysts

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Wastewater generated in table olive manufacturing processes (WWTOMP) is a seasonal waste difficult to manage due to the high salinity content. The treatment of WWTOMP has been accomplished by including a precoagulation stage with aluminum sulfate, oxidation using the peroxymonosulfate/Fe(III) system, and a final aerobic biological stage. The optimum conditions of precoagulation led to a chemical oxygen demand removal rate of roughly 30–35% without the need for pH adjustment. The peroxymonosulfate(PMS)/Fe(III) system was thereafter applied to the effluent after coagulation. The addition of PMS lowered the initial pH to acidic conditions (pH = 1.5–2.0). Under these operating conditions, the initial PMS concentration and the initial Fe(III) dose showed optimum values. An excess of the oxidant and/or the catalyst partially inhibited the process efficiency, and pH exerted a significant influence. COD removal was substantially increased as the pH of the solution was moved toward circumneutral values in the interval 5–4. Moreover, at pH values of 5 and 7, PMS was capable of reducing COD without the need for Fe(III) presence. The direct oxidation of organics by PMS or the generation of chloride-based oxidants (Cl2 or HClO) is suggested to occur in parallel to the radical attack from PMS decomposition. An attempt to biologically reduce the final COD to discharge limits failed, mainly due to the high salinity content; however, the 1:2 dilution led to the reduction in COD from 6 to 2 g L−1. Acclimated sludges or saline content reduction should be first considered.

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Section: Preliminary Coagulation-flocculation Stagementioning

confidence: 99%

“…Catalysts 2024, 14 Hydroxyl and/or sulfate radicals can oxidize a number of organic and inorganic substances, leading to the generation of simpler and more biodegradable final products or even mineralization to carbon dioxide and water [5]. Additionally, PS and/or PMS can directly oxidize contaminants through a nonradical pathway [6].…”

Section: Introductionmentioning

confidence: 99%

Table Olive Manufacturing Wastewater Treatment Using the Peroxymonosulfate/Fe(III) System

Rivas,

Beltrán,

Gimeno

2024

Catalysts

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“…Composite membranes are used to treat petroleum wastewater. Due to the increase in the hydrophilicity of the membrane with the increase of hydrophilic SZP particles, the hydrophilic layer formed on the surface of the membrane plays an important role in removing the gel-like layer [63].…”

Section: The Treatment Of Petroleum Wastewater With the Membrane Filt...mentioning

confidence: 99%

Petroleum Wastewater Treatment

Beni¹,

Adel²,

Zaeimdar³

et al. 2023

Sustainable Development

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Petroleum hydrocarbons in refinery wastewater are considered the main cause of pollution. Wastewater from oil refineries contains large amounts of oil and fat in the form of suspended particles, light and heavy hydrocarbons, phenol, and other dissolved organic substances, which cause environmental pollution if they are discharged into the environment without treatment. Usually, conventional methods of treating petroleum wastes have a lot of costs; due to the existence of sufficient area for the construction of solar distillation ponds and suitable sunlight, as well as a large number of sunny days near the equator, the solar distillation method can be used. Membrane bioreactors based on biological decomposition and biological transformation of oils and waste oil materials have provided new solutions for the biological treatment of these wastewater. In addition to these methods, Fenton’s advanced oxidation methods, electrochemical coagulation method, and membrane filtration method are mentioned in this chapter.

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“…This combines activated sludge with membrane filtration equipment, typically lowpressure microfiltration or ultrafiltration membranes [92]. In normally activated sludge facilities, the critical solid-liquid separation process is done using a clarified system instead.…”

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confidence: 99%

The Role of Conventional Methods and Artificial Intelligence in the Wastewater Treatment: A Comprehensive Review

et al. 2022

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Water pollution is a severe health concern. Several studies have recently demonstrated the efficacy of various approaches for treating wastewater from anthropogenic activities. Wastewater treatment is an artificial procedure that removes contaminants and impurities from wastewater or sewage before discharging the effluent back into the environment. It can also be recycled by being further treated or polished to provide safe quality water for use, such as potable water. Municipal and industrial wastewater treatment systems are designed to create effluent discharged to the surrounding environments and must comply with various authorities’ environmental discharge quality rules. An effective, low-cost, environmentally friendly, and long-term wastewater treatment system is critical to protecting our unique and finite water supplies. Moreover, this paper discusses water pollution classification and the three traditional treatment methods of precipitation/encapsulation, adsorption, and membrane technologies, such as electrodialysis, nanofiltration, reverse osmosis, and other artificial intelligence technology. The treatment performances in terms of application and variables have been fully addressed. The ultimate purpose of wastewater treatment is to protect the environment that is compatible with public health and socioeconomic considerations. Realization of the nature of wastewater is the guiding concept for designing a practical and advanced treatment technology to assure the treated wastewater’s productivity, safety, and quality.

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Membrane filtration, activated sludge and solar photocatalytic technologies for the effective treatment of table olive processing wastewater

Cited by 14 publications

References 48 publications

Table Olive Manufacturing Wastewater Treatment Using the Peroxymonosulfate/Fe(III) System

Table Olive Manufacturing Wastewater Treatment Using the Peroxymonosulfate/Fe(III) System

Petroleum Wastewater Treatment

The Role of Conventional Methods and Artificial Intelligence in the Wastewater Treatment: A Comprehensive Review

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