Evaluation of a membrane bioreactor and nanofiltration for municipal wastewater reclamation: Trace contaminant control and fouling mitigation

Chon, Kangmin; Sarp, Sarper; Lee, Sungyun; Lee, Jong Hoon; Ramírez, Juan Antonio López; Cho, Jaeweon

doi:10.1016/j.desal.2011.01.002

Cited by 66 publications

(27 citation statements)

References 22 publications

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“…6 and Table 5, the strong humiclike fluorescence and soluble microbial by-product-like fluorescence of Ful 1 and 2 [26,27] which had maximum peaks at excitation (Ex) = 335 nm and emission (Em) = 414 nm, Ex = 275 nm and Em = 339 nm were found in the NF feed and their intensities were 8,004 and 4,792 nm, respectively. This might because the NF feed was the effluent of active carbon filter following the biological treatment processes, the humic-like and soluble microbial by-product-like substance also remained in it.…”

Section: Organic Matter Rejection Of Different Membranesmentioning

confidence: 97%

Advanced treatment of antibiotic wastewater by nanofiltration: membrane selection and operation optimization

Jianxing¹,

Wei²,

Cheng³

2013

Desalination and Water Treatment

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A B S T R A C TOrthogonal experiments of L 9 (3 4 ) were carried out to select suitable nanofiltration (NF) membrane and optimize operational conditions of NF for advanced treatment of antibiotic wastewater by three commercial membranes (Osmonics, Sepro and Synder Corp). Results showed that the GE membrane was selected through comparing membrane flux and pollutants rejections, and its optimal conditions were at transmembrane pressure (TMP) of 10 bar and pH of 5.0. Under these optimized conditions, the permeate flux reached 64.7 L/h m 2 , and the rejection rates of total organic carbon, chemical oxygen demand, UV 254 , color, and turbidity were 99.3, 91.8, 91.5, 100, and 87.2%, respectively. The rejection rates of multivalent ions were higher than 93%. Humic-like and soluble microbial by-product-like substances in the feed water could be effectively removed. Analysis of variance showed that TMP was the major factor of both permeate flux and monovalent anion removal (p < 0.05), and membrane type was the major factor of removing nearly all pollutants except Na + and K + in test conditions. The pH did not have any significant effect on neither permeate flux nor pollutants rejection rates.

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Section: Organic Matter Rejection Of Different Membranesmentioning

confidence: 97%

Advanced treatment of antibiotic wastewater by nanofiltration: membrane selection and operation optimization

Jianxing¹,

Wei²,

Cheng³

2013

Desalination and Water Treatment

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“…Among the various decentralized wastewater treatment processes, the membrane bioreactor (MBR) technology offers the advantage of its relatively small size, which can operate with varying volumes of influent (Suneethi, 2009). An MBR plant can both handle high strength nitrate influent that is too enriched for classical biological systems and produce effluent quality that is higher than that from any other alternative biological wastewater treatment (Chon et al, 2011;Shen et al, 2009). Membrane bioreactors are designed to operate under varying hydraulic and organic loads, which enables them to handle different daily or seasonal capacities by activating or deactivating additional internal bioreactors.…”

Section: Bioreactors To Adjust Nutrient Levels In Irrigation Watermentioning

confidence: 99%

Subsurface‐Applied Tailored Water: Combining Nutrient Benefits with Efficient Turfgrass Irrigation

Sevostianova

Leinauer

2014

Crop Science

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Irrigating turfgrass with treated effluent water has become a common practice in response to shrinking supplies of potable water. Newly developed decentralized water treatment systems produce recycled water containing varying quantities of N on short notice. Using such tailored water to irrigate turf areas would reduce or eliminate the need for additional mineral fertilizers if concentrations of nitrate in the water were raised during the growing season to meet the annual N requirement. On the basis of our estimates, in order for turfgrasses to receive their entire annual N requirements (20 to 25 g N m−2 yr−1) solely from effluent irrigation, nitrogen concentrations in irrigation water would need to range from as low as 11 mg L−1 for arid regions with a 12‐mo growing season to more than 50 mg L−1 in areas with only a 6‐mo growing season. Furthermore, tailored water should be applied with advanced irrigation systems with high distribution uniformity to minimize nitrate leaching. Subsurface irrigation systems distribute water more efficiently and uniformly and minimize human exposure to treated effluent, which would help dispel negative public perceptions regarding the use of effluent to irrigate public turf areas. As the use of treated effluent for turfgrass irrigation continues to increase, the idea of adjustable nutrient content in irrigation water combined with a subsurface irrigation delivery system could become an important means to sustainably maintain much‐needed urban green spaces.

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“…Wastewater reuse presents a promising solution to overcome the shortage of fresh water resources, but it requires an efficient economic feasible treatment processes to achieve high water quality [1]. Reclaimed wastewaters can be used in irrigation, industrial applications (e.g.…”

Section: Introductionmentioning

confidence: 99%

Financial analysis of NF membranes for upgrading municipal wastewater treatment

Shaalan

Tokhy

Sharaky

et al. 2014

Desalination and Water Treatment

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A B S T R A C TNanofiltration (NF) membranes represent state-of-the-art membrane processes with numerous significant applications. In this paper, worldwide reported financial data on capital, operating (O&M) and unit costs were gathered, screened, and analyzed. New cost functions have been developed incorporating plant capacity and NF recovery. Further, software (NFSTP) was developed for performance and cost evaluation from the verified models. Analysis of the data represented by NF cost models indicate that the unit cost of NF treatment for secondary treated wastewater decreases by about 11%, when plant capacity is doubled from 50,000 to 100,000 m 3 /d for the same recovery. Moreover, the change in recovery above 70% would not significantly affect the capital, O&M, and unit costs. Application of NF system to the case of El-Gabal El-Asfar municipal wastewater treatment plant in Egypt using the developed software (NFSTP) indicates a unit cost of 0.253 $/m 3 for an operational module of 100,000 m 3 /d.

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Evaluation of a membrane bioreactor and nanofiltration for municipal wastewater reclamation: Trace contaminant control and fouling mitigation

Cited by 66 publications

References 22 publications

Advanced treatment of antibiotic wastewater by nanofiltration: membrane selection and operation optimization

Advanced treatment of antibiotic wastewater by nanofiltration: membrane selection and operation optimization

Subsurface‐Applied Tailored Water: Combining Nutrient Benefits with Efficient Turfgrass Irrigation

Financial analysis of NF membranes for upgrading municipal wastewater treatment

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