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

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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

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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.

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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