SANITARY SEWAGE SYSTEM RECOVERY ASSESSMENT

File: 011696_129_15_032.txt
Page: 032
Total Pages: 71






                       manholes, transition  chambers, and screw type pumping
                       stations, which cause turbulence and increase of hydrogen
                       rulfide gas from-the sewage to the atmosphere&
                       10.    Past -sewage  treatment facility designs *have
                       underestimated the Quantity and strength of the inf luent
                       wastewater. Consecluently, the Ardiya Treatment Plant was
                       heavily overloaded (hydraulically and organically) and
                       signif icant quantities of raw untreated sewage was by-.
                       passed to the sea daily.        Although odor problems
                       associated with each wastewater treatment plant were
                       caused by odorous compounds generated in the sewers and
                       pumping stations, the problem was made m'ore severe by the
                       lack of oxygen transfer capacities at the plants. The
                       sewage by-passed to the sea caused periodic but
                       widespread odor complaints.

                       11. UnseVered Areas'of Kuwait city. The areas which do
                       not have adequate sewage collection system continue to be
                       a source of odors. All unsevered'areaq are serviced by
                       holding tanks and pumper/tanker trucks. The waste from
                       the trucks is disposed of at landfill, sites. agricultural
                       or landscaped areas, or discharged into sewer manholes.
                       Potential odor problems exist at each disposal site.
                       This type of waste management system should be expected
                       to generate undesirable odor because the holding tanks
                       are often undersized and not pumped frequently enough,
                       thus creating flows of raw sewage in the area and perhaps
 'of sewage to the buildings.     Xt has been
                       reported that some of the residents, attempting to
                       alleviate the sanitary and odor problems, have connected
                       their household plumbing. to the storm drainage system,
                       thus compounding the problem.-
                       in summary, the Kuwait master Plan -analysis indicated
                 that system wide odor control was not achievable by
                 controlling odor only at the wastewater treatment plants and
                 Dumping stations, Odorsmust also be controlled in the trunk
                 sewers.   The report concluded that existing odor control
                 systemot with the exception of the air injection systems at
                 the major and minor pump stations were reasonably effective in
                 controlling odors. The report added that these tries of odor
                 control systems however, did not extend tg the collection
                 system. Despite the fact that MPW installed 146 odor control
                 systeyn-- (zany of which worked very well) to reduce the severe
                 odors which occurred (prior to the war) throughout the city,
                 the problem was persistent.





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Box ID = BX000000
Unit = CONST ENG LABS  
Parent Organization = CORPS OF ENGS   
Folder Title = SANITARY SEWAGE SYSTEM RECOVERY ASSESSMENT                                                      
Subject = SANITARY SEWAGE SYSTEM RECOVERY ASSESSMENT
Document Number =        129
Image file name = 00000033.tif