Recuperação e utilização de N, P e K pelo feijoeiro em razão de diferentes tipos de cama de frango.

Projeto: 01.09.01.001

Modelos de composteira para compostagem de aves mortas.

bitstream/item/56384/1/publicacao-ct-57.pd

Casca de arroz e palhada de soja na compostagem de carcaças de frango de corte.

Projeto: 03.07.09.049

Acícula de pinus, bagaço de cana, palha de milho, casca de amendoim, capim e maravalha como substratos na compostagem de carcaça de frango de corte.

bitstream/item/50882/1/circular-tecnica-56.pdfProjeto/Plano de Ação: 03.07.94.900-04

Medição da vazão em rios pelo método do flutuador.

bitstream/item/58075/1/CUsersPiazzonDocuments455.pdfProjeto n. 03.06.52.000-03

Utilização de fontes de energia renováveis para o aquecimento de aves.

Projeto/Plano de Ação: 03.05.01.021

Swine manure digestate treatment using electrocoagulation

ABSTRACT Anaerobic biodigestion is an appropriate alternative for the treatment of swine wastewater due to its biogas generation properties and the possibility of its application as a source of energy for heating or electricity. However, digestate can still contain high levels of turbidity, organic carbon and nutrients and must be correctly managed as a biofertilizer, or treated to avoid any impact on the environment. Considering this, electrocoagulation (EC) shows promise as a technology because of its ease of handling and high efficiency in effluent remediation. This study aimed to evaluate the performance of EC in a batch system in the treatment of swine wastewater digestate. The wastewater used in the treatment was sampled from a 10 m3 biodigestor effluent (digestate) located at Concórdia, Santa Catarina, Brazil. A batch-scale experiment was carried out to evaluate the following two variables: electrode distance (ED) and voltage applied (V). The removal efficiency levels (%) for the best operational condition (2 cm, 5 V) after 30 min were: 97 %, 98 %, 77 % and 10 % for color, turbidity, total organic carbon (TOC) and total nitrogen (TN), respectively. The EC batch system produced efficient results, underlining its promise as an alternative to be applied in the treatment of digestate