Loading...
Please wait, while we are loading the content...
Similar Documents
Biological fi ltration with and without prior in-line coagulation to reduce UF fouling by secondary ef fl uent
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aly, Samia Ahmed Anderson, William B. Huck, Peter M. |
| Copyright Year | 2018 |
| Abstract | The objectives of this research were to investigate biofiltration prior to ultrafiltration (UF) for treatment of secondary effluent. Biofiltration with and without prior in-line coagulation was assessed for UF membrane fouling reduction. Two parallel pilot-scale biofilters, each with different media (sand vs. anthracite), were operated under identical conditions at a hydraulic loading rate of 0.75 m/h. A component of this investigation included the in-line application of a 1.0 mg/L dose of ferric sulfate prior to an anthracite biofilter. All UF membrane fouling experiments were conducted at bench-scale at a constant flux of 32 L/mh (LMH). The sand (BF1) and anthracite biofilters (BF2) removed on average 25 and 20%, respectively, of the biopolymer fraction of the effluent organic matter. Humic substances were less well removed at about 10%, while biofilter influent turbidity was reduced by 75 and 70% through BF1 and BF2, respectively. Feeding the UF membrane with biofilter effluent (no prior coagulant addition) substantially reduced both hydraulically reversible and irreversible membrane fouling by up to 60 and 80%, respectively. Hydraulically reversible and irreversible fouling were further reduced (up to 69 and 87%, respectively) by the integration of the in-line coagulation/ biofiltration pre-treatment processes compared to biofiltration alone. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/). doi: 10.2166/wrd.2017.154 om https://iwaponline.com/jwrd/article-pdf/8/2/176/240637/jwrd0080176.pdf 19 Samia A. Aly (corresponding author) Sanitary Engineering Department, Alexandria University, Alexandria, Egypt E-mail: samiaaly80@gmail.com William B. Anderson Peter M. Huck Department of Civil & Environmental Engineering, University of Waterloo, Waterloo, ON, Canada N2L 3G1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://watermark.silverchair.com/jwrd0080176.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAgAwggH8BgkqhkiG9w0BBwagggHtMIIB6QIBADCCAeIGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMJ_MoTEOGJqta5Mn7AgEQgIIBs-_OA1rRT209rvvPlNrQnn7fNQRGH4pSbj9Vpy4LCaSBK6CPN31Vd_oSvhLQeLi0ytbP8cY6SVY7d48zEsvF7ltm-kaXNg3SzWLvjQIrw9kuSqlUeC2TArSx9ZxHO6nPbVrsS0wMfDq9ot83kRJURo_Rgrv-uxZWQaDHJBVOQ7O2dX_3t7EL6rTSPf_9j0x6JkVNoMkAPshdk99bwtnONHx6Gb2GD6o0ejbXJPJ8oXNS3qI-ZClivyRsHSDBzrgIJMFwcPxUil0Aap-0sK7UfeW3IufkOn46lzf1_H4lriLXmSpkwpND_xdzmQabJxZM2njShi0gDwFceVvyXk8g8ypBdhjCBE0tpTJTXzmfIjoVW9e7qn7CHFzhzj5lNMPn4nY1YA5uecIrxk15KtHx178Pm_DLehG1z_Ev8CrC7HrYyFsGSGg01xnjzzf6F-TXgstoGMv8GsVkvjuQWSblG-YWA2kvDeli-gwyYMMiX8p4dy6xNyVAuwXjx51a17rhrX7tPb4Tzkyyh_5_PJVGLW638AUq7eiehDD_199uNktu2pVkuhHBHY3rbuSzEyNxxpOJfw |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
