PMID- 31826080 OWN - NLM STAT- MEDLINE DCOM- 20201210 LR - 20221207 IS - 1678-4375 (Electronic) IS - 1519-6984 (Linking) VI - 80 IP - 4 DP - 2020 Oct-Dec TI - Seasonal performance of aquatic macrophytes in improving physicochemical parameters of swine wastewater. PG - 897-906 LID - 10.1590/1519-6984.225502 [doi] AB - Swine wastewaters (SW) present organic load and nutrient content, what have caused degradation of water quality in many watercourses. Thus, the aquatic macrophytes represent an alternative for the depollution of these wastewaters, due to the high recovery power. The aim of this study was to evaluate the performance of the Eichhornia crassipes (Mart.) Solms, Pistia stratiotes L. and Salvinia auriculata Aubl. in improving the physicochemical targets of SW, as well as to quantify the total ammoniacal nitrogen (NH4+) and total phosphorus (total P) in the plant tissue of the macrophytes and the dry matter biomass (DMB) in two seasons of the year (spring and winter). The experiment was designed in a randomized block design, with 4 treatments (T) with 4 replicates: T1 = Control (without plants); T2 = E. crassipes; T3 = P. stratiotes; and T4 = S. auriculata, submitted to a SW diluted in 50% water. The monitoring is done in tanks during a period of 30 days of each season. Electrical conductivity (EC), dissolved oxygen (DO), turbidity, NH4+ and dissolved phosphorus (P) were analyzed in the SW. In the plants, the contents of NH4+, total P and DMB were determined. It was verified that, in the spring, the plants showed higher production of DMB and a more significant reduction of EC, NH4+ and P, when compared to the plants managed in the SW in the winter. E. crassipes was more efficient at removing P (39%) and total NH4+ (80.2%), and EC reducing (92%) of SW and DMB production in the spring. The results demonstrated that the NH4+ uptake by E. crassipes contributed to a considerable removal of NH4+ and P from SW. FAU - Pinaffi, C D AU - Pinaffi CD AUID- ORCID: 0000-0002-8384-6591 AD - Programa de Pos-Graduacao em Agronomia/Producao Vegetal, Universidade do Oeste Paulista - UNOESTE, Rodovia Raposo Tavares, km 572, Limoeiro, CEP 19067-175, Presidente Prudente, SP, Brasil. FAU - Scandelai, A P J AU - Scandelai APJ AUID- ORCID: 0000-0003-0398-3754 AD - Departamento de Engenharia Quimica, Universidade Estadual de Maringa - UEM, Av. Colombo, 5790, CEP 87020-900, Jardim Universitario, Maringa, PR, Brasil. FAU - Santos, C H AU - Santos CH AUID- ORCID: 0000-0001-6589-4373 AD - Programa de Pos-Graduacao em Agronomia/Producao Vegetal, Universidade do Oeste Paulista - UNOESTE, Rodovia Raposo Tavares, km 572, Limoeiro, CEP 19067-175, Presidente Prudente, SP, Brasil. LA - eng PT - Journal Article PL - Brazil TA - Braz J Biol JT - Brazilian journal of biology = Revista brasleira de biologia JID - 101129542 RN - 0 (Waste Water) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Biodegradation, Environmental MH - *Eichhornia MH - Seasons MH - Swine MH - Wastewater MH - *Water Pollutants, Chemical/analysis EDAT- 2019/12/12 06:00 MHDA- 2020/12/15 06:00 CRDT- 2019/12/12 06:00 PHST- 2019/06/22 00:00 [received] PHST- 2019/08/01 00:00 [accepted] PHST- 2019/12/12 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2019/12/12 06:00 [entrez] AID - S1519-69842019005020104 [pii] AID - 10.1590/1519-6984.225502 [doi] PST - ppublish SO - Braz J Biol. 2020 Oct-Dec;80(4):897-906. doi: 10.1590/1519-6984.225502.