Compostagem de resíduos de pescado com dois agentes volumosos

Abstract

Composting is a biological process of treating solid particles does not qualify a specific group of organic microorganisms in the degradation of an organic material, resulting in an organic fertilizer rich in nutrients. However, the quality of the composting process depends on the base material. Therefore, the objective of this study was to investigate the influence of the bulking agent on the performance of the composting of filleting residues from the fish industry. Capiaçu and Grass Esmeralda and fish waste (composed of viscera, caudal fin, vertebral column, fins, scales and meat remains) were used as bulking agents. As capacity cells, they were designed in layers, interspersing waste residues, in the proportion of 3:2, capacity to use raw material and use natural material with 200 kg of compost. For length operation the structures can be inserted as continuous flow coatings. The composting period was 90 days, the temperature being monitored daily, and samples of the windrow profile were periodically collected to control the humidity. The thermal process (temperature ≥ 45º C) was observed, which did not occur at the beginning of the temperature process, due to the time required for the microorganisms to homogenize the digestion of waste, in addition, as the temperature laws were at the beginning of winter , and Environmental initiatives may have difficulties with the process. Machining stations ST, C and N) (presence pressure of aeration, year and time of composting) the Capiaçu ST and SV to and from Grama were approximately 75%, the mineralization process of the material took time. It was possible to hear averages (4%), FDA (45%) and Carbon (75%). In this way, the star grass presented a better final compound than the Capiaçu. It is concluded that the process of composting fish waste can be influenced by excess moisture, aeration and heat not affected by the environment. The compost grass, the major organic agent of the fibrous constituents and smaller than the bulkier use of filtering the recommended Capiaçu fish.