Farm Waste Treatment » Livestock Waste Digester
Livestock Waste Digester
Biological Control of sludge and odor associated with any type of livestock waste, including horses.
Hog, cattle and poultry producers, as well as dairy farmers, are facing increased pressure from regulatory agencies and surrounding communities to eliminate offensive odors and to treat animal waste.
Air emissions from these operations can lower surrounding land values and kill vegetation leading to lawsuits. Overflows from settling and collection ponds can pollute surrounding land and surface water. High ammonia levels can harm adult livestock as well as newborns and cause unhealthy working conditions for the employees at the facilities. Organic build-up causes blockages in the channels, connecting indoor pens to the outdoor ponds. LWD (Formerly called LWT-1) has been created to solve these problems.
LWD is a combination of naturally occurring microorganism that will not harm humans, livestock or the surrounding ecosystems. Regular applications of LWD to the troughs below animal pens, reduces sludge accumulation, preventing channel blocking and lowering the quantity of water, used to flush the wastes to the collection ponds. Periodically adding LWD to the collection ponds completely breaks the sludge to liquids, making them easier to pump-out.
LWD is environmentally friendly and since it eliminates ammonia and liquefies sludge, accidental releases from collection ponds will not harm surrounding surface water. Liquid from the collection ponds can be sprayed on soils, enriching them similar to an application of compost. There also is the near elimination of odor when the manure is applied on the farm fields.
LWD can be applied to waste pits and ponds either manually or automatically using metering pumps. Quantities vary depending on the size, flow rates and configuration.
The microbes contained in the products are non-pathogenic for humans, animals and plants.
The microbes produce catabolic enzymes that breakdown hydrocarbons as well as other organic wastes. The end products of metabolism are carbon dioxide, water and short chained fatty acids. Because they are non-pathogenic and are grown on inorganic media, they should have non antibiotic resistance. Once the waste is degraded, these microbes will slowly decline in the soil or water to background levels due to lack of substrate.
Strata products are shipped as live liquid microbes, with a normal count of at least 10,000,000 colony forming units per ml. The normal shelf life of the products is one year from the date of shipment. At the end of one year, while still effective, the microbial count will start to diminish due to lack of food source..
Application: In the case of farms, LWD is poured directly into the waste lagoon as an initial treatment.
Maintenance doses are added as required to maintain the desired effect. Application rates are affected by many variables. Some of these variables are retention time; size of the lagoon or pig farm; levels of waste reduction required; water temperature; waste stream flow rate; percentage of dissolved oxygen in the lagoon and the pH level.
There have been no reports of toxicity with LWD bacteria. It is approved for entrance and sales in Australia and Hawaii. To test LWD, or other products, place 200 ml with farm waste (chicken, pig or cow) in a flask. Aerate the mixture with a small aquarium pump. Note the reduction of waste in the following days.
Livestock Waste Lagoon Treatment
55 gallons (209 l) per 1,000,000 gallons (3,785,000 l) - but each application will be different depending on the actual field conditions. Please see below for more details.
Recommendations for Treating Contamination with LWD
Application Rates - Soil
1. Heavy contaminated areas (black stained areas) use 2 to 3 - 55 gallon (208 liter) drums per acre.
2. Medium contaminated areas (area where wate was dumped) use 1 to 2 - 55 gallon drums per acre.
3. Light contaminated areas (runoff area from where waste was dumped) use 1/2 to 1 - 55 gallon drums per acre.
Application methods - Soil
1. Dilute LWD with enough water to cover one acre.
2. Apply 50% of LWD and till into the soil after first application.
3. Apply 50% of LWD to tilled soil and then water to raise soil moisture content to between 16% and 22%.
4. Planting in areas after treatrment will speed the remediation process.
Livestock Pond Treatment
1. Add LWD to the pond at a rate of 125 ppm.
2. Spray undiluted LWD over the surface area of the pond.
3. Circulate the pond using a trash pump to mix the LWD with the pond water. Circulating the pond for several hours each week will speed the remediation process. Aeration is always advised.
4. It usually takes 2 to 3 months to remediate one foot of sludge in the pond.
5. If the pond volume is comprised of 50% sludge, then a second application of LWD may be needed.
For Best Results
The pH of the treated soil and water need to be between 6 and 9; the temperature of the treated soil and water needs to be above 60 F (15 C) and the treated soil moisture content must be maintained between 16% and 22%.
Our recommendations for treating the chicken manure in the concrete enclosures are as follows:
Mix 4 to 8 ounces of LWD with enough water to evenly apply to 1-cubic yard of waste.
Please contact us for the MSDS sheet.
LWT-1 Test Application
July 2, 1998
Pig Farm Test - 25 days of Testing
From: EAZ Company
Mr. Miguel Garmendia
34 48 171618
Paramters at the entrance of the aeration:
COD 5,850 mg/l
NTK 1,404 mg/l
N-NH4 1,330 mg/l
Aerobic stage: Clearer exit: COD 704 mg/l
NTK 149 mg/l
N-NH4 97 mg/l
NO3 81.4 mg/l
Free Oxygen is 2.5 ppm. It is higher.
Aerobic filter stage:
Parameters released to the river.
COD without value
NTK 140 ppm
N-NH4 124 ppm
NO3 64.8 ppm
1. Reduction of NTK: 1,404 to 149, it is 89%.
Reduction of N-NH4: 1,330 to 97, it is 97%, very important.
2. Level at the exit, after the oxidation in the aerobic reactor.
NTK - It decreased from 183.7 to 140 ppm
N-NH4 - It decreased from 179 to 124 ppm
NO3 - 64.8 ppm
LWT-1 contains 20 different species of aerobic, facultative and chemolithotrophic bacteria.