[en] Abstract: the demand for intensive livestock rearing, together with the promoted use of agricultural fertilizers, has ended up dislodging agriculture and livestock, historically complementary. Therefore, the management of waste from stables has become, at specific times, a focus of public attention. Through this project, it is intended to propose the most common techniques of livestock excretion management, taking into account the advantages and disadvantages from a technical, environmental and economic point of view, giving priority to environmental sustainability. Specifically, this work provides a solution to the waste generated by the Aberekin bovine farm, with 300 stallions and located in the town of Zamudio, Bizkaia. First, the complete treatment necessary for the treated waste can be dumped into the Public Sanitation Network, destined to WWTP of Galindo, the most important plant of the Bilbao Water Consortium - Bizkaia, has been studied. The decision for this destination is given by the flexibility in the composition of the waste, much greater than that necessary for discharge. Next, the guidelines for the construction of the plant that will allow the treatment of the generated waste are designed and given. For this, the project consists of five documents. The first, memory and annexes, is focused on the approach of alternatives and the solution chosen, based on the information in the annexes. Once the optimal solution has been chosen, then there are, in order, Plans, Technical Specification, Budget and Health and Safety Study. It is necessary to highlight the considerable composition of the waste to be treated, which causes the phases of the treatment to be increased, especially those dedicated to the reduction of SS, organic matter, nitrogen and phosphorus. The proposed treatment is divided into pretreatment, primary treatment and secondary treatment. To condition the effluent to be treated, there is an arrival casket, a thick pit and a roughing channel. The effluent obtained at this stage has a homogeneous flow without large solids from the work carried out in the stables. The second phase consists of two in-line decanters, sized according to the solids load, in which the decantable solids present in the wastewater will be eliminated. Finally, as a secondary treatment, a lagoon system will be used. This phase also focuses on the anaerobic treatment of the effluent, formed by four online gaps. The lagoon ends with an optional lagoon and a purification lagoon, both with a larger surface area, in order to purify the composition through oxygenation and sunlight.

[eu] Laburpena: abeltzaintza hazkuntza intentsiboaren eskariak, nekazaritzako ongarrien erabilerarekin batera, nekazaritza eta abeltzaintza baztertu ditu, historikoki osagarriak. Beraz, ukuiluen hondakinen kudeaketa, une jakin batzuetan, jendearen arreta ardatz bilakatu da. Proiektu honen bidez, abereen uzkurtzearen kudeaketaren teknika ohikoenak proposatu nahi dira, abantailak eta desabantailak ikuspuntu tekniko, ingurumen eta ekonomiko batetik kontuan hartuta, ingurumenaren iraunkortasunari lehentasuna emanez. Hain zuzen ere, lan honek irtenbide bat ematen du Aberekin abere haziendak sortutako hondakinei, 300 geldialdi dituena eta Bizkaiko Zamudio herrian dagoena. Hasteko, tratatutako hondakinak saneamendu publikoko sarera isurtzeko beharrezkoa den tratamendu osoa aztertu da, Galindoko EDUra, Bilbo Ur Partzuergoko planta garrantzitsuena - Bizkaia. Helmuga honetarako erabakia hondakinen konposizioan malgutasunak ematen du, isurketak egiteko behar dena baino askoz handiagoa. Ondoren, sortutako hondakinen tratamendua ahalbidetuko duen planta eraikitzeko jarraibideak diseinatu eta eman behar dira. Horretarako, proiektua bost dokumentuk osatzen dute. Lehena, memoria eta eranskinak, aukeren planteamenduan eta aukeratutako irtenbidean oinarritzen da, eranskinetako informazioan oinarrituta. Irtenbide egokiena aukeratuta, planak, zehaztapen teknikoa, aurrekontua eta osasun eta segurtasun azterketa daude. Tratatu beharreko hondakinen osaera nabarmena nabarmendu behar da eta horrek tratamendu faseen gehikuntza eragiten du, batez ere SS, materia organikoa, nitrogenoa eta fosforoa murrizteari eskainitakoa. Proposatutako tratamendua aurretratamenduan, lehen tratamenduan eta bigarren mailako tratamenduan banatzen da. Tratatu beharreko efluentea baldintzatzeko, iristeko kaxa bat, zulo lodia eta zurtoineko kanala daude. Etapa honetan lortzen den efluenteak ukuiluan egindako lanetatik solido handirik gabeko fluxu homogeneoa du. Bigarren fasea lerroko bi dekantatzailek osatzen dute, solidoen kargaren arabera tamainakoa, eta horietan hondakin uretan dauden solido dekantagarriak ezabatuko dira. Azkenik, bigarren mailako tratamendu gisa, aintzira sistema erabiliko da. Fase honek efluentearen tratamendu anaerobikoa ere du ardatz, lineako lau hutsuneak osatuta. Aintzira aukerako aintzira batekin eta arazketa aintzirarekin amaitzen da, biak azalera handiagoarekin, konposizioa arazteko oxigenazio eta eguzki argiaren bidez.