SANITARY SEWAGE SYSTEM RECOVERY ASSESSMENT

File: 011696_129_15_038.txt
Page: 038
Total Pages: 71






                 stage process may be used for seeding the second stage process
                 also.

                      THERE IS NO APPARENT REASON FOR REPLAC         OF MEDIA IN
                 ANY OF THE RAPID SMM FILTER SYSTEMS AT EACH OF THE SEWAGE
                 TREA.TMT PLANTS.
                      ALL ETECTRICAL AND MECHANICAL CO@ORENTS S
                 INSPECTED PRIOR TO INITIAL START-UP. )KTTEMPTING TO START SUCH
                 BOUIPMENT WITHOUT FIRST CORRECTING MINOR PRO13LEMS COULD CAUSE
                 MJOR DAMAGE. eg., caked sludge or sand in the clarifiers
                 could damage the sludge removal mechanisms; energizing 3@phase
                 motors if one phase is out will cause damage.

                      CAREFMLY CHECK ALL CHLORruE EOUIPMENT AND LINES WITH
                 PRESSURE TEST AND REPLACE ALL SAFETY EOUIP@ PRIOR TO
                 INITIAL ESE OF CHLORLNATION FACILITI'ES. Chlorine gas leaks
                 can be fatal.


                      5.   General description of long term infrastructure
                 needs/requirements: grit removal, less design dependency on
                 manual labor has to be considered, replacement of asbestos-
                 cement sewer lines, expansion of plant capacity, and metering
                 Capability are examples.


                 B. RIKKA EX-TENDGD AGRATTOR PLAN2':

                      1. General Description. This plant is located south-
                 southeast of the Kuwait City center. Xt has a capacity of
                 approximately 17.2 MGD (65,000 cubic meters (zO) per dayl. Xt
                 is a recently constructed (1982) plant in generally good
                 -condition. Design oversights include failure to provide for
                 grit removal and no flow measurement. capability at the
                 headwords.   Flow is received by pressure sewer line        from
                                                  and from A14 via A15.       The
ation A15 directly,
                 southern areas of Kuwait City served by this plant.          See
                 Figure 10 for the Rikka plant layout.

                      The plant is an extended aeration variation of          the
                 activated sludge process. Raw sewage is brought directly into
                 the aeration tanks$ without grit removal. Piles of grit were
                 adjacent to one of the aeration tanks (estimate 40 or more
                 cubic yards)     which reportedly represent        one    years
                 accumulation. Aeration is accomplished with surface  ' aerators.
                 Clarifiers after the aeration tanks are followed by rapid sand
                 filters (tertiary treatment) and chlorination facilities. The
                 Ef fluent is currently used in part for irrigation at the plant
                 and elsewhere.



                                               32                                38
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 = 00000039.tif