Polluting process

Polluting process

In the States of Iowa and North Carolina where hog farming is a major industry, corporate and private farms are raising over 30 million animals at any given time.

Each animal produces apx 2.5 lb of fecal solids every day. That calculates to 37,500 tons per day or 13.39 million tons per year.

Throughout the remaining States the total head of hog being raised is calculated to exceed 73 million. That increases the annual resource of swine manure available for process to 91,250 Tons. When water is added to the mix at a volume of 10 gallons per animal day, the estimated volume of contaminated raw slurry water deposited on cropland increases to 266.4 billion gallons.

It is not surprising that all in States in which the swine industry operate, they and the Federal Government actively pursue protection of environments which can (and are) effected by free and ground water pollution. The Crena process recovers apx 40% of contaminated water in clean condensate.

Providing the pork industry with an innovative technology to convert such a large resource into cash underpins the business of Crena Resources.


In raw state 3,600 gallons of liquid swine manure (apx 15 Tons) must be applied per acre to deliver just 50 lb’s of Nitrogen to a field. Volatization (evaporation), and surface runoff resulting from heavy traffic compaction, accounts for upwards of 50% loss of nutrient in the first 24 hours. A swine farm carrying 5,000 animals can produce upwards of 50,000 gallons of contaminated water carrying 8,350 lbs of solids per day. Therefore most disposal plans accept the losses and opt for dumping raw manure on any land that will consume the daily output.

When raw manure is dewatered and dried, 50,000 gallons will produce apx four (4.17) tons of powdered solid.

The value proposition in producing powdered solid is that less than one half ton (apx 900 lb) will provide the entire quantity of N,P&K nutrient required for one acre of crop field, per day.

Therefore 50,000 gallons of raw manure will produce enough NKP fertilizer for 9.28 acres of crop field per day. Water contamination, heavy traffic compaction, and nutrient loss are all but eliminated.


A corn field typically requires 180 lb of Nitrogen per acre, per crop cycle to replenish nutrient absorbed by the previous crop. It has been shown by USDA laboratory manure analyses that if solids are dried, 905 lb of dry solid delivers the required amount of N P & K to meet that demand. BUT, they warn “Material with less than 15% dry matter is generally liquid and only 40-60% of the nitrogen becomes available within one year of application. The remainder may or may not ever become available”. **Translation: 1% - 2% solid manure sludge pumped from storage containment is basically dirty water.

The actual amount of recoverable nutrient is likely to vary from farm to farm due to differing diet formula however when blended, a stabilized N,P&K content can be produced.

A technology that significantly reduces water and concentrates nutrient in a powdered material that amalgamates with soil, significantly increases its value for improving soil fertility and by extension its cash value. Balanced nutrient delivered by smaller and lighter vehicles that do not damage or compact soil is the true value Crena Resources technology brings to the Agriculture Industry.

Elevating dry manure to that of ‘super fertilizer’ by supplementing organics and applying to soil in a single application further enhances value for farmers.

The mobile drying rig that travels to the farm to dry and store a superior soil fertilizing product elevates animal raising byproduct and crop production on many levels. It brings new value to manure management lifting it out of cost drag up to revenue generating status. Cost benefit analyses dictate management must give more attention to manure management if they look to capitalize on all cash generating resources.

The agricultural scientific community unanimously supports the adoption of all technologies that will fundamentally increase the production of food supplies. In this science of rapid low cost drying - on the farm - Crena is without peer.

Soil and Crop Damaging

Soil and Crop Damaging

Soil and Crop Preservation

Soil and Crop Preservation

**It should be noted that raw manure slurry is rarely as dry as 15% solid