Process for treating sewage with zeolite filler in aerated biologic filter pool and zeolite filler |
Title: |
Process for treating sewage with zeolite filler in aerated biologic filter pool and zeolite filler |
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Application Number: |
02116307 |
Application Date: |
2002/03/22 |
Announcement Date: |
2002/09/18 |
Pub. Date: |
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Publication Number: |
1369440 |
Announcement Number: |
1151085 |
Grant Date: |
2004-5-26 |
Granted Pub. Date: |
2004-5-26 |
ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
C02F 3/08, C02F 3/10, C02F 3/34 |
Applicant(s): |
Qinghua Univ |
Inventor(s): |
Tian Wenhua, Wen Xianghua, Qian Yi |
Key Words: |
treating process, sewage, zeolite filler, aerated biologic filter pool |
Abstract: |
A process for treating sewage zeolite as filter material in aerating biological filter pool is disclosed. It features that the life sewage to be treated contains COD (40-120 mg/L) and ammonacal nitrogen (10-40 mg/L), the height of filter material is 2-4 m, hydraulic load is 2-5 m/h, the intensity for pneuamtic-hydraulic counter-flushing is 12-18L/sq.ms, the water flushing intensity is 8-12 L/sq.m.s, and the water rinsing intensity is 8-12 L/sq.ms. The zeolite has 3-6 mm for granularity, 1900-2200 Kg/cu.m for density, 3-5 for Mohs'hardness and 3-6 kg/cu.m for ammonia ion exchange capacity. Its advantages are high effect and high impact resistance. |
Claim: |
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Priority: |
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PCT: |
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