scholarly journals Oily wastewater treatment by adsorption–membrane filtration hybrid process using powdered activated carbon, natural zeolite powder and low cost ceramic membranes

2017 ◽  
Vol 76 (4) ◽  
pp. 895-908 ◽  
Author(s):  
Yaser Rasouli ◽  
Mohsen Abbasi ◽  
Seyed Abdollatif Hashemifard
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Natural Zeolite ◽  
Low Cost ◽  
Ceramic Membranes ◽  
Powdered Activated Carbon ◽  
Hybrid Process ◽  
Oily Wastewater ◽  
Alumina Membranes ◽  
Oily Wastewater Treatment

In this research, four types of low cost and high performance ceramic microfiltration (MF) membranes have been employed in an in-line adsorption–MF process for oily wastewater treatment. Mullite, mullite-alumina, mullite-alumina-zeolite and mullite-zeolite membranes were fabricated as ceramic MF membranes by low cost kaolin clay, natural zeolite and α-alumina powder. Powdered activated carbon (PAC) and natural zeolite powder in concentrations of 100–800 mg L−1 were used as adsorbent agent in the in-line adsorption–MF process. Performance of the hybrid adsorption–MF process for each concentration of PAC and natural zeolite powder was investigated by comparing quantity of permeation flux (PF) and total organic carbon (TOC) rejection during oily wastewater treatment. Results showed that by application of 400 mg L−1 PAC in the adsorption–MF process with mullite and mullite-alumina membranes, TOC rejection was enhanced up to 99.5% in comparison to the MF only process. An increasing trend was observed in PF by application of 100–800 mg L−1 PAC. Also, results demonstrated that the adsorption–MF process with natural zeolite powder has higher performance in comparison to the MF process for all membranes except mullite-alumina membranes in terms of PF. In fact, significant enhancement of PF and TOC rejection up to 99.9% were achieved by employing natural zeolite powder in the in-line adsorption–MF hybrid process.

Emulsified oily wastewater treatment using a hybrid-modified resin and activated carbon system

2008 ◽  
Vol 63 (2) ◽  
pp. 400-406 ◽  
Author(s):  
Yan-Bo Zhou ◽  
Xuan-Yi Tang ◽  
Xiao-Meng Hu ◽  
Stefan Fritschi ◽  
Jun Lu
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Oily Wastewater ◽  
Oily Wastewater Treatment ◽  
Carbon System ◽  
Modified Resin

scholarly journals Spinel-based ceramic membranes coupling solid sludge recycling with oily wastewater treatment

2020 ◽  
Vol 169 ◽  
pp. 115180 ◽  
Author(s):  
Mingliang Chen ◽  
Li Zhu ◽  
Jingwen Chen ◽  
Fenglin Yang ◽  
Chuyang Y. Tang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Ceramic Membranes ◽  
Oily Wastewater ◽  
Sludge Recycling ◽  
Oily Wastewater Treatment

scholarly journals Synthetic Wastewater Treatment using Agro-Based Adsorbents

2021 ◽  
Vol 18 (11) ◽  
Author(s):  
Saisantosh Vamshi Harsha MADIRAJU ◽  
Yung-Tse HUNG ◽  
Howard Hao-Che PAUL
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Organic Carbon ◽  
Low Cost ◽  
Orange Peel ◽  
Powdered Activated Carbon ◽  
Synthetic Wastewater ◽  
Batch Adsorption ◽  
Peanut Hull ◽  
Naphthol Green B

This study was undertaken to determine the treatment a binary mixture of dye wastewater (containing Naphthol Green B) and the sugar industry wastewater for removal of color. The specific treatment in the current research consists of adsorption using low-cost adsorbents and microfiltration using Whatman-41 microfilters. Considerations of this treatment process are to take the samples using batch adsorption and avoid coagulation with further dilution. Numerous runs are made, with the ideal waste samples prepared in the laboratory. As a 1st step in the study, different dye concentrations are considered using different concentrations of sugar wastewater. Samples are treated with 3 different Agro-based low-cost adsorbents (orange peel, peanut hull, and Powdered Activated Carbon (PAC)). Transmittance values for Naphthol Green B after treatment with orange peel and peanut hull are 83.12 % and 76.98 % respectively. Peanut hull has the highest transmittance of 76.98 % with < 425 µm size. Orange peel contributes to the highest transmittance of 83.12 % with a 2 g dosage. The values of transmittance after treatment with PAC are taken as the datum for the comparison of adsorption performance after treatment using orange peel and peanut hull. Peanut hull has the highest Non-Purgeable Organic Carbon (NPOC) measurement of 37.86 mg/L when mixed with 600 ppm of sugar wastewater. Similarly, when mixed with 600 ppm of sugar wastewater, orange peel contributes to the NPOC value of 35.06 mg/L. These treated samples using low-cost adsorbents can be considered as pre-treated wastewater that can be sent to municipal wastewater treatment plants. HIGHLIGHTS Orange Peel and Peanut Hull are the Agro-based low-cost adsorbents for color removal Wastewater treated with Peanut Hull has high Non-Purgeable Organic Carbon measurement Peanut hull has the highest transmittance of 76.98 % with < 425µm size Orange peel contributes to the highest transmittance of 83.12 % with a 2 g dosage Powdered Activated Carbon is considered as a reference adsorbent in this study GRAPHICAL ABSTRACT

scholarly journals COAGULATION/FLOCCULATION PROCESS FOR OILY WASTEWATER TREATMENT

2021 ◽  
Vol 25 (Special) ◽  
pp. 3-68-3-76
Author(s):  
Hussein A. Jabbar ◽  
◽  
Mohammed J. Alatabe ◽  
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Aluminum Sulfate ◽  
Low Cost ◽  
Suspended Solid ◽  
Ferric Sulfate ◽  
Oily Wastewater ◽  
Dose Concentration ◽  
Oily Waste ◽  
Oily Wastewater Treatment

Oily wastewater is one of the most dangerous forms of environmental pollution, it is large amount of water that is wasted petrochemical industries, oily waste water contains oil, suspended solids, and dissolved solids. The study investigates the treatment of real oily waste water that was collected from al-Dura refinery (Iraq) /Middle Refineries Company from oil and suspended solid contamination for re-use and environmental consideration using coagulation and flocculation processes. Coagulation /flocculation is a common method used as primary purification processes to oily wastewater treatment due to its usability, performance, and low cost. Coagulation experiments were completed by the Jar Test device. The additives coagulants of ferric sulfate and aluminum sulfate were in a range about (10- 25) ppm, as well as polyelectrolyte- (polyacrylamide) as an additional flocculent in the range (1-4) ppm. The results show that ferric sulfate was more efficient in removing turbidity than Aluminum sulfate under the same conditions, with the best removal of turbidity at dose concentration 20 ppm of Ferric sulfate and a flocculent dose concentration of 3 ppm of polyacrylamide, also with oil content decreasing from 288 ppm to 14.4 ppm and the turbidity removal from 187 to 8.5 NTU.

scholarly journals Turning Tissue Waste into High-Performance Microfiber Filters for Oily Wastewater Treatment

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 378
Author(s):  
Gaoliang Wei ◽  
Jun Dong ◽  
Jing Bai ◽  
Yongsheng Zhao ◽  
Chuanyu Qin
Keyword(s):  
Contact Angle ◽  
Wastewater Treatment ◽  
High Performance ◽  
Low Cost ◽  
Oily Wastewater ◽  
Water Contact ◽  
Oil Mixtures ◽  
Oil Water ◽  
Oily Wastewater Treatment ◽  
Underwater Superoleophobicity

Developing low-cost, durable, and high-performance materials for the separation of water/oil mixtures (free oil/water mixtures and emulsions) is critical to wastewater treatment and resource recovery. However, this currently remains a challenge. In this work, we report a biopolymer microfiber assembly, fabricated from the recovery of tissue waste, as a low-cost and high-performance filter for oily wastewater treatment. The microfiber filters demonstrate superhydrophilicity (water contact angle of 28.8°) and underwater superoleophobicity (oil contact angle of 154.2°), and thus can achieve separation efficiencies of >96% for both free oil/water mixtures and surfactant-stabilized emulsions even in highly acidic (pH 2.2)/alkaline (pH 11.8) conditions. Additionally, the prepared microfiber filters possess a much higher resistance to oil fouling than conventional membranes when filtering emulsions, which is because the large-sized 3D interconnected channels of the filters can delay the formation of a low-porosity oil gel layer on their surface. The filters are expected to practically apply for the oily wastewater treatment and reduce the amount of tissue waste entering the environment.

scholarly journals Low-cost clay-based membranes for oily wastewater treatment

2014 ◽  
Vol 122 (1429) ◽  
pp. 788-794 ◽  
Author(s):  
Jung-Hye EOM ◽  
Young-Wook KIM ◽  
Sung-Ho YUN ◽  
In-Hyuck SONG
Keyword(s):  
Wastewater Treatment ◽  
Low Cost ◽  
Oily Wastewater ◽  
Oily Wastewater Treatment

scholarly journals State-of-the-Art Ceramic Membranes for Oily Wastewater Treatment: Modification and Application

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 888
Author(s):  
Mingliang Chen ◽  
Sebastiaan G. J. Heijman ◽  
Luuk C. Rietveld
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Filtration ◽  
Ceramic Membrane ◽  
Sol Gel ◽  
Ceramic Membranes ◽  
Oily Wastewater ◽  
Membrane Modification ◽  
Flux Enhancement ◽  
Oily Wastewater Treatment

Membrane filtration is considered to be one of the most promising methods for oily wastewater treatment. Because of their hydrophilic surface, ceramic membranes show less fouling compared with their polymeric counterparts. Membrane fouling, however, is an inevitable phenomenon in the filtration process, leading to higher energy consumption and a shorter lifetime of the membrane. It is therefore important to improve the fouling resistance of the ceramic membranes in oily wastewater treatment. In this review, we first focus on the various methods used for ceramic membrane modification, aiming for application in oily wastewater. Then, the performance of the modified ceramic membranes is discussed and compared. We found that, besides the traditional sol-gel and dip-coating methods, atomic layer deposition is promising for ceramic membrane modification in terms of the control of layer thickness, and pore size tuning. Enhanced surface hydrophilicity and surface charge are two of the most used strategies to improve the performance of ceramic membranes for oily wastewater treatment. Nano-sized metal oxides such as TiO2, ZrO2 and Fe2O3 and graphene oxide are considered to be the potential candidates for ceramic membrane modification for flux enhancement and fouling alleviation. The passive antifouling ceramic membranes, e.g., photocatalytic and electrified ceramic membranes, have shown some potential in fouling control, oil rejection and flux enhancement, but have their limitations.

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