The topic<\/u>:\u00a0\u00a0 Troubleshooting, municipal wastewater treatment by MBRs<\/p>\n
The client<\/u>:\u00a0 UK water consultancy<\/p>\n
The brief <\/u><\/p>\n
This job entailed the assessment of the design and O&M details to try and overcome a challenge imposed by severe permeability decline following a CIP (clean-in-place) at a small (~2,000 m3<\/sup>\/d capacity) plant in Scotland. Two site visits and a number of communications with the client revealed that the recirculation rate through the membrane tank was too low for one of the plants, causing concentration polarisation problems, coupled with a strong clogging and ragging tendency. The ragging challenge was met by installing a rudimentary screen on the RAS. A second smaller plant (~400 m3<\/sup>\/d capacity) was subject to severe fluctuations in water quality, demanding equalisation.<\/p>\n 3 days<\/strong><\/p>\n <\/p>\n The cause of ragging generally was subsequently identified in a separate research project, the outcomes of which were published in the Journal of Membrane Science<\/em> (Stefanski et al, 2011). This paper was the first research paper published which analysed and quantified ragging in MBRs, as well identifying the root cause.<\/p>\n","protected":false},"excerpt":{"rendered":" The topic:\u00a0\u00a0 Troubleshooting, municipal wastewater treatment by MBRs The client:\u00a0 UK water consultancy The brief This job entailed the assessment […]<\/p>\n","protected":false},"author":710,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-130","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/pages\/130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/users\/710"}],"replies":[{"embeddable":true,"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/comments?post=130"}],"version-history":[{"count":5,"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/pages\/130\/revisions"}],"predecessor-version":[{"id":140,"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/pages\/130\/revisions\/140"}],"wp:attachment":[{"href":"http:\/\/qufaculty.qu.edu.qa\/simon-judd\/wp-json\/wp\/v2\/media?parent=130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}