Development of Land Application System of Treated Piggery Waste Water Using a Flat Spray Hose

Abstract

A land application system of treated piggery wastewater using flat spray hoses was developed to decrease costs and labor. The developed system consists of flat spray hoses with a length of 50m and diameter of 50mm, a tank, two engine pumps, and a 4-ton truck. Two types of hoses with hole of 4mm and 9mm diameters were tested. The flow rate of land application system was 4.0h/ha, which was similar to a septic tank truck. However, the new system has the advantage that one worker without manual operation in the field can operate it, while the septic tank truck needs two workers. Flow rates at the end of the furrow near the pump were 50% higher than at the end of the hose. An uneven distribution is unlikely to influence the growth of sugarcane. The flat spray hose was reeled up using a developed flat hose winder within 50-120s. A proper application of wastewater is achieved using electric conductivity as a simple index of total nitrogen (TN) (ppm). A multi-task 4-ton truck outfitted with inexpensive equipment allows an easy estimation of fertilizer matter from treated wastewater, which promotes cooperation system between crop farms and livestock farms.