Evaluation and testing of fine mesh sieve technologies for primary treatment of municipal wastewater
Fine mesh sieve technologies were tested in full scale at several municipal wastewater treatment plants. A screening test was used to characterize wastewater and establish the design criteria for the sieves. To achieve high removal efficiencies it was crucial to operate the sieves with a filter mat....
| Publié dans: | Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 54(2006), 10 vom: 20., Seite 31-8 |
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| Format: | Article |
| Langue: | English |
| Publié: |
2006
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| Accès à la collection: | Water science and technology : a journal of the International Association on Water Pollution Research |
| Sujets: | Evaluation Study Journal Article Research Support, Non-U.S. Gov't Sewage |
| Résumé: | Fine mesh sieve technologies were tested in full scale at several municipal wastewater treatment plants. A screening test was used to characterize wastewater and establish the design criteria for the sieves. To achieve high removal efficiencies it was crucial to operate the sieves with a filter mat. Rotating belt sieves performed best in the full-scale tests. A small dose of cationic polymer and a static flocculator ahead of a rotating belt sieve achieved excellent results on a wastewater that was originally found unsuitable for primary treatment with fine mesh sieves. Simple screw presses dewatered the sludge from the sieves to typically 25-30% total solids. Using fine mesh sieves with <500 microns openings was found to normally be the most economical process for primary treatment |
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| Description: | Date Completed 21.02.2007 Date Revised 10.12.2019 published: Print Citation Status MEDLINE |
| ISSN: | 0273-1223 |