In Brazil, swine raw waste from pig stall cleaning (SRW) represents an important water and nutrients sources for crops. However, treatment systems have been searched for to reduce its contaminant loads, making swine effluent agricultural use possible. Therefore, the study purpose was to evaluate agricultural use potential of swine effluents from anaerobic treatment system, considering current legislations. SRW was sieved and treated in anaerobic digester, with hydraulic retention times (HRT) equal to 100, 130, 30, 180 and 210 days. Treated effluent from digester (SEB) was diluted with water (SED) (1:50, v:v), simulating effluent characteristics from a complete treatment system. Chemical, physico-chemical, and microbiological parameters were determined in effluents. There were reductions of 80 to 90% in organic load, P, Ca, Cu, Zn, Fe, Mn and Mg contents. There were fecal coliforms and Salmonella spp. elimination. Nevertheless, there was other coliform bacteria growth. SEB presented EC, N-NH₄⁺, and Na values higher than standards for agricultural use. Cu and Zn contents of SEB were reduced only when HRT were higher than 100 days. Thus, treated swine effluent use should be regulated by agricultural and environmental criteria established by future legislation, considering most pollutants elements, such as N, Na and pathogens.

在巴西，猪场清洁产生的生猪废料是农作物的重要水和养分来源。然而，已经寻求寻找处理系统以减少其污染物负荷，从而使得猪排泄物可用于农业。因此，研究目的是在考虑当前法规的前提下，评估厌氧处理系统中猪污水的农业利用潜力。将SRW筛分并在厌氧消化池中处理，水力停留时间（HRT）等于100、130、30、180和210天。消化池（SEB）的处理过的污水用水（SED）（1:50，v：v）稀释，以模拟完整处理系统的污水特性。测定了废水中的化学，物理化学和微生物参数。P，Ca，Cu，Zn，Fe，锰和镁含量。有粪大肠菌群和沙门氏菌属。消除。然而，还有其他大肠菌生长。SEB的EC，N-NH ₄ ⁺和Na值均高于农业使用标准。仅当HRT高于100天时，SEB的Cu和Zn含量才会降低。因此，应考虑到大多数污染物元素（例如N，Na和病原体），通过未来法规制定的农业和环境标准对经过处理的猪废水的使用进行监管。