1978 - Volume #2, Issue #2, Page #23[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
New Yield Booster For Irrigators
"We think it has exciting yieldboosting possibilities for hundreds of irrigators throughout the U.S., particularly those with alkaline soils under irrigation,'' Jim Persinger, president of Fuel, Inc., and inventor-manufacturer of the Exhaust Scrubber told FARM SHOW. The device, backed by two years of extensive testing on a wide variety of irrigated crops, has just been introduced on the market and stands ready to show its stuff to irrigators who use natural gas, LP gas, or diesel irrigation engines to pump irrigation water, whether from a well or a surface supply.
Virtually all irrigation farmers with alkaline soils can substantially lower pH of the water by spiking it with C02 extracted from the engine exhaust, according to Persinger. He explains that water, at the rate of 20 gal. per minute, is used to "scrub" nitrogen and COz from the total exhaust. The enriched water is then injected back into the irrigation water.
The scrubber device is 8 ft. tall, 16 in. in dia., and weighs 500 lbs. Exhaust hookups are available for one, two or four exhaust pipes.
The amount of actual nitrogen and C02 extracted by the Exhaust Scrubber depends on the size of the engine, the type of fuel being used, and other factors. For example, a 534 Ford engine operated at 2400 rpm fueled with natural gas and pumping well water at the rate of 1000 gpm., will produce about 2 lbs. of actual nitrogen per hour, and about 30 parts per million of COz, explains Persinger. "If pH of the irrigated water is 7.5, it will drop to about 7.0 with injection of `scrubbed' COz. In addition to lowering the pH level of the water, and ultimately of the soil itself, C0z `scrubbed' from the engine exhaust helps increase water penetration, speeds decay of organic material, and helps make soil nutrients more readily available to plants."
Equipping an irrigation engine with the new "scrubber" system doesn't hurt the engine, according to Persinger, and doesn't create any back pressure or make the engine work any harder. "At most, the system requires only 1 hp. to operate. On extremely alkaline soils, two or four exhaust scrubbers can be installed on one engine." If a farmer has several alkaline spots scattered throughout a field that is otherwise non-alkaline, the "scrubber" catrbe operated on an on-off basis so it can inject C02 when the alkaline spots are being watered, then be turned off for non-alkaline areas of the field. The device isn't recommended for use on irrigated non-alkaline soils.
Persinger emphasizes that enriching irrigation water with C02 and nitrogen "scrubbed" from engine exhaust doesn't harm soil bacteria, nor does it pose any corrosion or other problems to aluminum or other types of irrigation pipes, valves, pumps or other equipment.
Exhaust Scrubbers are custom built for each application. "We start with a complete analysis of the soil and irrigation water to determine design specifications," explains Persinger. In addition to the company's main office in Kansas, his firm, Fuel, Inc., has opened a West Coast sales and service office, headquartered at Visalia, Calif.
Cost of a "Scrubber" system is right at $1,900 for use on engines up to 800 Cu. in., and $500 additional for larger engines. The new invention is the second major "innovation" Persinger has developed for irrigators. Two years ago he developed and began manufacturing a filter for filtering natural gas. "Most users report a 6 to 13% reduction in fuel cost after installing our natural gas filter," says Persinger. "It removes formation water, hydrogen sulfides, sulfur and iron sulfides from natural gas."
For more details on the engine Exhaust Scrubber, and the natural gas fuel filter, contact: FARM SHOW Followup, Fuel, Inc., Jim Persinger, Pres., Box 477, 512 South Main, Hugoton, Kan. 67951 (ph. 316-5442882).
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