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Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Manure & WastewaterProduction
Prepared by J.E. Andrews, PE, NRCS - Lakewood, CO
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
OBJECTIVES
To estimate the yearly production of:
» Manure & Other Solid Wastes
» Process Wastewater
» Nitrogen & Phosphorus
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Information Needed
• Livestock Information Type Number Average Weight Confinement Period Wastewater, bedding & other waste volumes
• Worksheet #1 a&b
• Tables 2, 3 & 4
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1a. Solid Manure & Nutrient Inventory
Facility Name:
Prepared by: date: Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Manure Production Manure Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (lb/AU-day) (lb./day) tons/year (lb/ton) (lb/ton) (lb/year) (lb/year)
Other Solid Wastes, (bedding, waste feed, etc.) days/year lb/day tons/year lb/ton lb/ton lb/year lb/year
Total N P2O5
Total # Animal Units: Manure Produced, tons/year: Nutrients, lb/year:
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1b. Liquid Manure, Process Wastewater & Nutrient Inventory
Facility Name:
Prepared by: date: Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Waste Production Waste Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (gal/AU-day) (gal/day) (1000 gal/year) (lb/1000gal) (lb/1000gal) (lb/year) (lb/year)
Source(s) of Other Process Wastewater days/year gallons / day 1,000 gal/year lb/1000 gal lb/1000 gal lb/year lb/year
Total N P2O5
Total # Animal Units: Waste Volume, 1,000 Gal./year: Nutrients, lb/year:
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
TABLE 2. Solid manure production by livestock
calculated on a wet weight basis at the time of land application.
Manure MoistureAnimal Type Production Content
lbs./day/1,000lbs. of animals
% at time of spreading
Dairy Lactating Cow 18.5 46 Dry Cow 17.6 46 Heifer 16.9 46
Beef Feeder, yearling (750 - 1,100lb) High Forage Diet 10.1 32
High Energy Diet 8.7 32 Feeder, (450 - 750 lb) 11.2 32 Cow 10.7 32
source: Bulletin 568A, BMPs for Manure Utilization Colorado State University Cooperative Extension Fort Collins, CO, September, 1999
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
TABLE 3b. Liquid swine manure production, not including other process wastewater or rainfall/runoff .
Manure MoistureSwine Type Production Content
gal./day/1,000lbs. of animals
% at time of spreading
Nursing/nursery pig, < 40lbs 12.8 90
Grower (40 - 220 lbs) 7.5 90 Replacement gilt 4 90 Sow (gestating) 3.3 91
Sow (lactating) 7.2 90
Boar 2.5 91
Table 2a.c Other Solid Waste Conversion FactorsMultiply material volume in cubic feet/day
by this factor to get pounds per day
Material Type Loose Chopped
------------------ lb / cubic feet ----------------Legume Hay 4.3 6.5
Grass Hay 4.0 6.0Straw 2.5 7.0
Wood Shavings 9.0Sawdust 12.0
Soil 75.0Sand 105.0
Ground Limestone 95.0
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
source: Bulletin 568A, BMPs for Manure Utilization Colorado State University Cooperative Extension Fort Collins, CO, September, 1999
TABLE 4. Approximate nutrient composition of various types of animal manure
at the time of land application.*
Moisture
Type of Manure Content Total N NH4-N** P2O5 K2O
Solid Handling Systems % -------------------------- lb./ton ----------------------------
Swine 82 10 6 9 8
Beef 32 23 7 24 41
Dairy Cattle 46 13 5 16 34
Sheep 31 29 5 26 38
Chickens without litter 55 33 26 48 34
with litter 25 56 36 45 34
Turkeys without litter 78 27 17 20 17
with litter 71 20 13 16 13
Horses without bedding 22 19 4 14 36
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Example Calculation
Frank’s Feedlot• 2,500 Head Beef• Entry weight ~ 500 LB.• Exit weight ~ 1,200 LB.• On site 365 days per year• Grain Diet
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 1 - Calculate Average weight
WeightAve.2
Wt.Exit Entry Wt.
*.lb 8502
lb. 1,200 lb. 500
* Enter in column (c) of Worksheet 1
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 2 - Calculate # Animal Units
Units Animal / AUlb. 1,000
WeightAve. AnimalsNo.
* AUs2,125 / AUlb. 1,000
lb. 850 x Head 2,500
* Enter in column (d) of Worksheet 1.
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 3 - Get Manure Production Rate
TABLE 2. Solid manure production by livestock
calculated on a wet weight basis at the time of land application.
Manure MoistureAnimal Type Production Content
lbs./day/1,000lbs. of animals
% at time of spreading
Dairy Lactating Cow 18.5 46 Dry Cow 17.6 46 Heifer 16.9 46
Beef Feeder, yearling (750 - 1,100lb) High Forage Diet 10.1 32
High Energy Diet 8.7 32 Feeder, (450 - 750 lb) 11.2 32 Cow 10.7 32
* Enter 8.7 LB. / day -AU in column (e) of Worksheet 1.
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 4 - Calculate Daily Manure Production
*dayLb. 18,488
AU-day Lb. 8.7 x AUs2,125
* Enter in column (g) of Worksheet 1.
# AUs x Production Rate = LB.s Manure / Day
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 5 - Calculate Annual Manure Production
* Enter in column (h) of Worksheet 1.
year/tons Manurelb./ton 2,000
Confined Days x #Manure/Day lb.
*year/tons 3,374lb./ton 2,000
days 365 lb./day x 18,488
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1. Solid Manure & Nutrient Inventory Worksheet
Facility Name: Frank's Feedlot
Prepared by: JEA date: Nov-00 Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Manure Production Manure Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (lb/AU-day) (lb./day) tons/year (lb/ton) (lb/ton) (lb/year) (lb/year)
Feeders, high energy 2,500 850 2,125 365 8.7 18,488 3,374
Total N P2O5
# Animal Units: 2,125 Manure Produced, tons/year: 3,374 Nutrients, lb/year:
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 6 - Get Manure Analysis
* Enter 23 LB.-N / ton in column (i) of Worksheet 1** Enter 24 LB.-P2O5 / ton in column (j) of Worksheet 1
TABLE 4. Approximate nutrient composition of various types of animal manure
at the time of land application.*
Moisture
Type of Manure Content Total N NH4-N** P2O5 K2O
Solid Handling Systems % -------------------------- lb./ton ----------------------------
Swine 82 10 6 9 8
Beef 32 23* 7 24* 41Dairy Cattle 46 13 5 16 34
Sheep 31 29 5 26 38
Chickens without litter 55 33 26 48 34
with litter 25 56 36 45 34
Turkeys without litter 78 27 17 20 17
with litter 71 20 13 16 13
Horses without bedding 22 19 4 14 36
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Step 7 - Calculate Available Nutrients
Nutrient -lb.ton / Nutrient -lb. x Manure Tons
*year
N-lb. 77,602
ton
Nlb. 23x
year
tons 3,374
* Enter in column (k) of Worksheet 1** Enter in column (l) of Worksheet 1
**year
OP-lb. 80,976
ton
OPlb. 24x
year
tons 3,374 5252
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1. Solid Manure & Nutrient Inventory Worksheet
Facility Name: Frank's Feedlot
Prepared by: JEA date: Nov-00 Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Manure Production Manure Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (lb/AU-day) (lb./day) tons/year (lb/ton) (lb/ton) (lb/year) (lb/year)
Feeders, high energy 2,500 850 2,125 365 8.7 18,488 3,374 23.0 24.0 77,601 80,975
Total N P2O5
# Animal Units: 2,125 Manure Produced, tons/year: 3,374 Nutrients, lb/year: 77,601 80,975
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Example CalculationFrank’s Dairy
• 300 Head Milk Cows @ 1,350 LB.s• 90 Head Dry Cows @ 1,350 LB.s• 40 Replacement Heifers @ 900 LB.s• 2,000 gal. Wash water per day• 200 LB.s hay bedding, 90 days per year
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1a. Solid Manure & Nutrient Inventory
Facility Name: Frank's Dairy (example)Prepared by: jea date: 11/23/00 Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Manure Production Manure Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (lb/AU-day) (lb./day) tons/year (lb/ton) (lb/ton) (lb/year) (lb/year)
Lactating Cows 300 1,350 405 365 18.5 7,493 1,367 13.0 16.0 17,776 21,878
Dry Cows 90 1,350 122 365 17.6 2,138 390 13.0 16.0 5,073 6,244
Repalcement Heifers 40 900 36 365 16.9 608 111 13.0 16.0 1,443 1,777Other Solid Wastes, (bedding, waste feed, etc.) days/year lb/day tons/year lb/ton lb/ton lb/year lb/year
grass hay bedding 90 200 9
Total N P2O5
Total # Animal Units: 563 Manure Produced, tons/year: 1,878 Nutrients, lb/year: 24,293 29,899
Worksheet 1b. Liquid Manure, Process Wastewater & Nutrient Inventory
Total N P2O5 Total N P2O5
Source(s) of Other Process Wastewater days/year gallons / day 1000 gal/year lb/1000 gal lb/1000 gal lb/year lb/year
Milkhouse & holding area wash water 365.0 2000 730 5.0 2.0 3,650 1,460
Total N P2O5
Total # Animal Units: Waste Volume, 1,000 Gal./year: 730 Nutrients, lb/year: 3,650 1,460
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Example Calculation
Frank’s Feeder Pigs• 2,400 finishers• Entry weight ~ 40 LB.• Exit weight ~ 260LB.• On site 365 days per year• 3,000 gal day flushing water into earthen
storage pond
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
Worksheet 1b. Liquid Manure, Process Wastewater & Nutrient Inventory
Facility Name: Frank's Feeder Pigs (example)
Prepared by: JEA date: Nov-00 Checked by: date:
(a) (b) (c) (d) (e) (f) (g) (h) (j) (j) (k) (l)Type Average Animal Period Unit Waste Waste Production Waste Analysis Nutrients Produced
of Number Weight Units Confined Production Daily Annually Total N P2O5 Total N P2O5
Livestock (#) (pounds) (# AUs) (days/year) (gal/AU-day) (gal/day) (1000 gal/year) (lb/1000gal) (lb/1000gal) (lb/year) (lb/year)
feeder pigs 2,400 150 360 365 7.5 2,700 986 36.0 27.0 35,478 26,609
Source(s) of Other Process Wastewater days/year gallons / day 1,000 gal/year lb/1000 gal lb/1000 gal lb/year lb/year
gutter flush water 365 3,000 1,095
Total N P2O5
Total # Animal Units: 360 Waste Volume, 1,000 Gal./year: 2,081 Nutrients, lb/year: 35,478 26,609
Colorado CNMP WorkshopColorado CNMP WorkshopSection 4 - Manure ProductionSection 4 - Manure Production
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