Tertiary Treatment of Wastewater Using a Rotating Biological Contactor System.

reportActive / Technical Report | Accession Number: ADA082502 | Open PDF

Abstract:

The use of rotating biological contactors RBCs to upgrade sewage treatment plants is relatively new in the United States, and only a few full-scale RBC secondary plants have been in operation for more than 1 year. RBCs appear to be simple to operate and maintain, cost competitive, reliable, economical, and compatible for retrofitting existing Department of Army DA sewage treatment plants without extensive renovation. However, data are scarce regarding RBC retrofitting strategies for upgrading existing secondary trickling-filter sewage treatment plants for additional biochemical oxygen demand BOD and nitrogen removal to meet current and anticipated National Pollution Discharge Elimination System NPDES requirements. In addition, because of differences in manufacturers inherent design philosophies, nowell-defined theory of design and operation is accepted by all manufacturers. The overall objective of this investigation was to evaluate the performance of an RBC wastewater treatment process as an upgrading-retrofit unit process for BOD reduction and nitrification. Using a 0.5-m RBC plant at an existing full-scale trickling-filter plant, the flexibility, feasibility, and characteristics for BOD reduction and nitrification potential were determined under a variety of hydraulic, organic, and ammonia-loading regimes. The design procedure is presented, along with design calculations for 1.0, 5.0, and 7.5 mgd plants. Capital costs and energy requirements for these plants at various options were listed for comparison. These results indicate that DA sewage treatment plants can be effectively upgraded.

Author(s):
Smith, Edgar D. ; Poon, C. P. C. ; Mikucki, Walter ; Bandy, John T.
Author Organization(s):
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
Descriptive Note:
Final rept.,
Pagination:
0043

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
CERL-TR-N-85
Project Number(s):
4A762720A896
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.3.3_Develop Strategy; JCA_4.3_Maintain; JCA_1.2.3_Educating; JCA_1.3.2_Personnel Management; JCA_4.2.2_Inventory Management; JCA_4.2_Supply; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.1_Force Management; JCA_1.2.5_Lessons Learned
Communities of Interest:
Biomedical
Descriptor(s):
*WASTE WATER, *SEWAGE TREATMENT, OPERATIONAL EFFECTIVENESS, NITROGEN, AMMONIA, COSTS, RELIABILITY, ARMY EQUIPMENT, QUALITY, STANDARDS, ARMY
Field(s)/Group(s):
Water Pollution and Control
Keyword(s):
Rotating biological contactors, PE62720A, AS896, WU017
Report Date:
1980 Feb 01