Drainage presentation

Project OverviewProject Overview

Sandersville Plant Drainage

Thiele Kaolin Company

Outline of PresentationOutline of Presentation

Present Existing Drainage Basins & Systems

Define Existing Problems w/ Systems4 Possible Solutions to System

Problems

Existing Drainage Basins & SystemsExisting Drainage Basins & Systems

Six Storm Drainage BasinsSeven Systems for Transporting

Waste.

Six Storm Drainage AreasSix Storm Drainage Areas

1. Yellow Area. This area contains the office buildings and parking lots, the lawn east of Thiele’s drive, and the lower rail road tracks. The area is approximately 27.97 acres. Storm water is 23.5 cfs. There is no process water.

2. Orange Area. This area collects process water from both calciners, #4 spray drier, #5 spray drier, and the calcined slurry make-down. The process flow rate ranges from 400-600 gpm on average and can peak when both scrubbers are running at #4 and #5 spray driers are running at approximately 800gpm. If railcars are being washed out the flow rate can spike as well. The 9.84 acre area is comprised largely of building structures, concreted tracks and graveled tracks. The peak storm runoff is 22.5cfs.

3. Blue Area. The 4.1 acre area is comprised largely of building structures, concreted tracks and graveled tracks. This area is largely impervious. Process water flows at app. 1200gpm. The peak storm runoff is 11.1cfs.

Six Storm Drainage AreasSix Storm Drainage Areas

4. Red Area. The 1.9 acre area is comprised largely of concreted tracks. This area belongs to Burgess but the drainage contributes to the gravity sewer in the blue area. The Peak storm runoff is 4.77 cfs. There is no process water from this area.

5. Green Area. The 5.07 acre area is comprised of the R&D building and lawn. The peak storm runoff is 8.44 cfs. There is no process water from this area.

6. Pink Area. The 11.5 acre area is comprised largely of industrial structures, concrete, gravel and low permeability soils. This area is largely impervious. The process water averages at 5.5 cfs.

27.97 Acres

Q=23.5 cfs Storm Water

9.84 AcresQ=22.51 cfs Storm Water800 gpm Process Water

5.07 Acres8.44 cfs Storm Water

11.55 Acres21.62 cfs Storm Water5.5 cfs Process Water



2.5 cfs Process Water

Seven SystemsSeven Systems System #1. The gravity system for the yellow drainage area which

flows directly to Limestone creek behind Burgess. System #2. The pressurized system which is located in the Orange

area and pumps to the gravity sewer beginning at Burgess. A retention pond located on KT’s property is part of this system.

System #3. This system is located in the blue area and is a gravity system which flows thru Burgess and Huber then thru an open ditch to the waste pond. This system has several bottlenecks. Both the blue and red drainage areas contribute to this area.

System #4. This is the drainage area on Burgess’s property (Red). This transports water to the blue gravity system.

System #5.The storm drainage for the R&D area (green area). System #6. The process and storm drainage for the main plant (pink

area). System #7.The pressurized system that returns waste to the Avant and

Hall Mines via two Hazleton 4J pumps.

SYSTEM #3

SYSTEM #1

SYSTEM #2

SYSTEM #4

SYSTEM #5

SYSTEM #6

SYSTEM #7

Reject Pump to Avant MineReject Pump to Avant MineSV- AM System Curves For Various Reject Line Combinations

-500

0

500

1000

1500

2000

0 100 200 300 400 500 600 700 800 900

GPM

Hea

d(f

t)

System Curve for 6in and 8in combo

2 Hazleton 4J @1490

8" line for total length(85000')

Reject to Hall MineReject to Hall MineSV-HM 6" REJECT SYSTEM CURVE

-500

0

500

1000

1500

2000

0 100 200 300 400 500 600 700

GPM

HE

AD

(ft)

Slurry Test Data Point

Water Test Data Point

Water to Tan Pond

Water to Thigpen Pond

Slurry to Thigpen

(2) Hazleton 4J @ 1490rpm

Calc. Water Curve

Calc. Slurry Curve

Problem AreasProblem Areas

Catch Basin at BurgessSewer Pipe by Beck Blvd. and thru

HuberOpen Drainage Ditch behind Huber

Drainage Summary ChartDrainage Summary Chart

-17.02

Possible Solutions Possible Solutions

Presentation of OptionsPros and Cons of OptionsEconomic Analysis of OptionsMiscellaneous

Presentation of OptionsPresentation of Options

1. Install a parallel gravity sewer through Burgess parking area, along Beck Blvd., and through Huber. Clean the open ditch improve slopes and concrete bottom or install pipe.

Option #130” Sewer Pipe

Stream-Line Sewer

Ditch Behind HuberDitch Behind Huber


2. Install Clarifier and route all process water and all storm water with exception to the “yellow” area to a larger pond at KT. Clarified water will be released to creek and solids will be pumped to mine.

4.5 Acres8.7MG

1 Acre

LIMESTONE CREEK

CLARIFIER1000GPM; 6 DAY RECOVERY

2400

GP

M @

2%

102GPM

@35%


3. Install a high level overflow at the upper gravity catch basin in Burgess’ parking lot. Reroute any storm water which exceeds the 18” pipe capacity to the lower existing KT pond. The lower KT pond will need to be dredged to accommodate additional storm water.


4. Send all of the “blue” area process and storm water to the sump pumps located in the orange area. Pump the total flow across the plant to the upper 42” sewer.

Pros and Cons of OptionsPros and Cons of Options

Option 1 – 30” Parallel SewerOption 1 – 30” Parallel Sewer

Advantages No additional

pumping Maintenance

Friendly Prevents Overflow

to Creek

Disadvantages Still in Joint Pond Initial Costs

Option 2 – ClarifierOption 2 – Clarifier

Advantages Free of Joint Waste

Pond Minimal Dredging

@ KT Prevents Overflow

to Creek

Disadvantages Highest Initial

Costs Highest

Maintenance Overall Reliability

Option 3 – Storm Water to KTOption 3 – Storm Water to KTAdvantages Lowest Initial Cost Catches Additional

Pollution Point Ditch Needs Less

Initial Cleaning Allows Full Pipe

Flow to Waste Pond

Rainwater Only to KT

Disadvantages Still in Joint Pond Additional Volume

Required @KT Pond

Still Need to Maintain Ditch

Option 4 – Blue Area to SumpOption 4 – Blue Area to Sump

Advantages No Ditch

Maintenance Prevents Overflow

to Creek

Disadvantages Still in Joint Pond Additional Volume

Reqd. @ KT Pond Additional

Pumping Cost 3rd Pump Reqd. Reliability on

Pumps

MiscellaneousMiscellaneous

Line to Mines for Dredge– 16” ID allows 3500gpm– Pump Solids Directly to Mine– Est. Cost at $3,000,000

Drainage presentation

Technology

Transcript of Drainage presentation