Techno-economic analysis of integrated bipolar membrane electrodialysis and batch reverse osmosis for water and chemical recovery from dairy wastewater

Ankoliya, Dipak; Mudgal, Anurag; Sinha, Manish Kumar; Davies, Philip A.; Park, Kiho; Rodríguez-Alegre, Rubén; Patel, Vivek; Patel, Jatin

doi:10.1016/j.jclepro.2023.138264

Cited by 10 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The characteristics of dairy effluent considered for the present research are given in Table 1 47 – 49 , which mainly comprises total dissolved solids (TDS), total suspended solids (TSS), chemical oxygen demand (COD), and biological oxygen demand (BOD). It is assumed that an average amount of ~ 2200 mg/L of dissolved solids are available in the wastewater, as reported in 50 . It should be noted that the presence of dissolved solids is due to acid and alkaline wash during the Cleaning-in-place process.…”

Section: System Descriptionmentioning

confidence: 99%

“…Note that, since the current research is based on a numerical analysis (and is not experimental in nature) and the evaluation is based on a simulation developed under a mathematical analysis, therefore, data reported in similar literature have been used to collect data. Indeed, the values presented in Table 1 are the average data of dairy wastewater characteristics reported in the literature 50 , 52 – 60 . However, the developed simulation and analysis has been done in a way that can be easily generalized for other similar cases.…”

Section: System Descriptionmentioning

confidence: 99%

“…The length of the membrane stack is a function of the area and current of the membrane, which is expressed by 64 : where, and are the cell pair numbers and cell width, respectively. Further, the mean salt concentration ( ) for an ion is defined as the integral average along the length of the path 50 : …”

Section: System Modellingmentioning

confidence: 99%

“…Accordingly, the specific power consumption of the BROU can be formulated by the following equation 68 : where, and are the specific power consumption of the pressurization and purge-refill phases, sequentially. The value of is determined as 50 : where, and are the volume-weighted average pressure and pressure drop in membrane module, respectively. Further, and refer to the feed and recirculation pumps efficiencies, respectively.…”

Section: System Modellingmentioning

confidence: 99%

“…The membrane replacement cost was assumed as 20% of the module cost and the maintenance cost was considered as 10% of the total CAPEX. Therefore, the total operating expenditure of the BROU can be formulated by the following equation 50 : …”

Section: System Modellingmentioning

confidence: 99%

See 4 more Smart Citations

Technical and financial feasibility of a chemicals recovery and energy and water production from a dairy wastewater treatment plant

Basem,

Jasim,

Ghodratallah

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Due to the high volume of wastewater produced from dairy factories, it is necessary to integrate a water recovery process with the treatment plant. Today, bipolar membrane electrodialysis units (BMEUs) are increasingly developed for wastewater treatment and reutilizing. This article aims to develop and evaluate (technical and cost analyses) a combined BMEU/batch reverse osmosis unit (BROU) process for the recovery of chemicals and water from the dairy wastewater plant. The combined BROU/BMEU process is able to simultaneously produce water and strong base-acid, and reduce power consumption due to the injection of concentrated feed flow into the BMEU. A comprehensive comparative analysis on the performances of two combined and stand-alone BMEU configurations are developed. The proposed combined technology for dairy factory wastewater treatment is designed on a new structure and configuration that can address superior cost analysis compared to similar technologies. Further, the optimal values of permeate flux and current density as two vital and influencing parameters on the performance of the studied dairy wastewater treatment process were calculated and discussed. From the outcomes, the total cost of production in the combined configuration has been reduced by approximately 26% compared to the stand-alone configuration. Increasing the feed concentration rate using the batch reverse osmosis process for the dairy wastewater treatment process can be an ideal solution from an economic point of view. Moreover, point (current density, feed concentration rate, total unit cost) = $$\left(328.9, 7, 14.37\right)$$ 328.9 , 7 , 14.37 can be considered as an optimal point for the economic performance of the studied wastewater treatment process.

show abstract

Section: System Descriptionmentioning

confidence: 99%