GORMAN-RUPP VG3B3-B, Инструкция по установке, эксплуатации и обслуживанию

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AquaSBR - Sequencing Batch Reactor
Design#: 131349
Option: Bid Design
Project:
Designed By Ed Fritz, Jr., P.E. on Tuesday, June 25, 2013
AUGUSTA CORRECTIONAL CENTER VA
Cycle Configuration
Cycle Times
Hydraulic Retention @Average Design Conditions (HRT-avg)
Hydraulic Retention @ Maximum Design Conditions (HRT-mdf)
Net Sludge Yield (Yn)
Net Sludge Production (lb WAS/Day)
Based upon the design MLSS concentration, influent loading, and volume requirements stated above, the AquaSBR shall
produce a certain quantity of sludge, as is typical of Activated Sludge Processes. The sludge yield factor, Yn is:
The net sludge production (dry solids basis) is:
PROCESS CALCULATIONS
Cycle Structure
Hydraulic Rentention Time (HRT)
Sludge Production
Sludge Volume (Vs)
In order to perform the necessary physical and biological treatment for the specified conditions, the following treatment
phases shall be used:
The following process segments have been determined specifically for this application based upon a combination of empirical
data and established kinetic models adapted for the AquaSBR. The following summarizes the process conditions:
1.
2.
1.
2.
1.
2.
3.
A.) Mixed-Fill
F.) Sludge Waste
B.) React-Fill
C.) React
D.) Settle
E.) Decant/Idle
- True anoxic mixing, independent of aeration, with influent.
- Aeration/Anoxic mixing with presence of influent.
- Aeration/Anoxic mixing under true Batch conditions.
- Quiescent solids/liquid separation.
- Effluent withdrawal via solids excluding, dual control decanter.
- Removal of excess biological sludge.
A.) No. Of Cycles (Ncdb)
B.) Total Cycle Time (Tc)
C.) Filling Time/Cycle (Tf)
D.) Aeration (Tair) E.) Mixing (Tmix)
F.) Settling (Tset)
G.) Decanting (Tdec)
H.) Sludge Waste (Tsig)
= 4
= 6 Hours
= 3 Hours
= 2.7 Hours/Cycle = 4 Hours/Cycle
= 1 Hours/Cycle
= 1 Hours/Cycle
= 9.9 Minutes/Cycle
Based upon an average volume of 0.236 MG/Reactor and 2 reactor(s), the HRT at an average flow of 0.435 MGD is:
HRT-avg = (Vawl/Reactor x # Reactors)/ADF = 1.09 days (26.0 hours)
Based upon a maximum volume of 0.290 MG/Reactor and 2 reactors, the HRT at a maximum flow of 0.870 MGD is:
HRT-mdf = (Vhwl/Reactor x # Reactors)/ADF = 0.67 days (16.0 hours)
Yn = 0.701 lb Waste Activated Sludge/lb BOD5/Day
Please note that the calculated sludge yield, Yn, was estimated via a kinetic model which accounts for the influent organic and
inorganic TSS as well as the developed Active, Endogenous, Inert-Organic, and Inert-Inorganic fractions of the MLSS.
lb WAS/Day = lb BOD5/Day x Yn = 661.6 lb WAS/day = (300.1 kg/day)
The volume of sludge produced, assuming a settled sludge concentration of 1.00% is:
Vs = lb WAS/Day/(Sludge Conc. x 8.34) = 7933 gpd = (30.0 m³/day)
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Aqua-Aerobic Systems, Inc. CONFIDENTIAL