solid wastes from the beet sugar industry. list dirt ** precipitated calcium carbonate ** rocks...

Solid Wastes From the Beet Sugar Industry

List

Dirt **

Precipitated calcium carbonate **

Rocks

Weeds and beet tailings

Limekiln waste

Used oil **

Discarded beets **

List (continued)

Discarded pressed and wet pulp

Limekiln brick

Laboratory waste

Scrap metal

Trash

Ash **

Process Chemicals

Types of Disposal

Landfill

Recycle

Land application

Burn for energy

Beneficial Use

Return to Manufacturer

Minn-Dak Lime and Dirt Landfills

Fall Land Application of Mud Washed from Beets

Corn Crop on Application Land

Winter Pond Cleaning

Winter Land Application

Cropping for Nutrient Removal

Pumping out Ponds

Mixing the Pond Mud

Running Hose to Fields

Booster Pump

Injecting Pumped Mud in Field

Waste Oil Recycling

Soil Stabilization with Fly Ash

Boiler Ash Handling

Bottom Ash (Inert) To Minn-Dak landfill or

use as aggregate

Fly ash (Not Inert) To Holding area Used in soil stabilization

or trucked to commercial landfill

Briquette Manufacture

Komarek Briquetting Research inc Model B 100R roller

press 705 ft Lbs Roll Torque 8 Tons Roll Force

Briquetting Test Results

Test # Briquette Composition (%) PerformanceFly Ash Molasses Hydrated

LimeCrushing Force (Lbs)

Drop Height at Failure (ft)

1 86.5 10 3.5 81 5

2 82.0 13 5.0 183 6

3* 79.5 15 5.5 222 9Briquettes made and tests conducted by K.R. Komarek Briquetting Research inc, Komarek Briquetting Research inc, Annistion, AL

Test Burn in the Pulp Dryer

Larger briquette LWR Enterprises Waterford,

OH

147 ton Mixture 55 Tons of briquettes 92 Tons of Coal 7,029 BTU/Lb

3 Tons/hourDry 25 tons per hour of pressed pulp at 72% moisture

Ash Bed was Variable

Economics

As DoneSmall Briquettes

Small Briquettes and CSB

Value in BTU 15.51$ 18.80$ 18.80$ Avoided Disposal 35.00$ 35.00$ 35.00$ Total Value 50.51$ 53.80$ 53.80$

Variable Materials 16.95$ 16.95$ 9.45$ Variable Labor 3.33$ 3.33$ 3.33$ Total Varible Costs 20.28$ 20.28$ 12.78$

Net Value per Ton 30.22$ 33.51$ 41.01$

Total Tons 3000 3000 3000Annual Value 90,674$ 100,535$ 123,035$

Equipment Cost 450,000$ 450,000$ 450,000$ Simple Payback (Years) 4.96 4.48 3.66

Required Permits

LandfillHazardous Waste Storage Disposal

Beneficial use Land application Construction

materials

Recycling

Required Permits

Pollution Reduction

Total cost accounting

Energy efficiency

Lower water usage

Markets for waste products

New technology

Questions?