| 摘要 |
A syphon filtration system is a low head, small foot print, long operating cycle, gravity filtration system for treatment of water and wastewater. The filtration system is an apparatus and process with one-stage or two-stage filtration process in one vessel. The filtration system can use different filtration media of sand, anthracite and activated carbon or other proprietary filtration media. The one-stage filtration system is applicable to removal of suspended solids or dissolved impurities. The two-stage filtration system can provide a combination of two different filtration processes for removal of suspended solids and dissolved impurities. The one-stage filtration system has low head room requirements, and the two-stage filtration system has small foot print requirements. In the two-stage filtration system, each filtration stage can be backwashed independently or both stages can be backwashed simultaneously. The filtration system uses novel syphon piping and controls design which extend the filtration operating cycle and reduce the filter apparatus headroom, and the filter backwash water volume requirements.
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