PMID- 34492441
OWN - NLM
STAT- MEDLINE
DCOM- 20211006
LR  - 20221207
IS  - 1095-8630 (Electronic)
IS  - 0301-4797 (Linking)
VI  - 299
DP  - 2021 Dec 1
TI  - Swine wastewater treatment in high rate algal ponds: Effects of Cu and Zn on 
      nutrient removal, productivity and biomass composition.
PG  - 113668
LID - S0301-4797(21)01730-8 [pii]
LID - 10.1016/j.jenvman.2021.113668 [doi]
AB  - This study aimed to evaluate the simultaneous interferences of Cu and Zn found in 
      swine wastewater (SW) in the development of microalgae considering real 
      conditions of cultivation in high rate algal ponds (HRAPs). Ten HRAPs on a pilot 
      scale were fed with SW with different mixtures of Cu (0.5-3.0 mg/L) and Zn 
      (5.0-25.0 mg/L). The interferences of these metals in removing nutrients 
      (N-NH(4)(+) and soluble phosphorus (Ps)) from the SW were determined. In 
      addition, this study evaluated the effects on biomass growth and biochemical 
      composition. Chlorella sp. was dominant in all HRAPs and the condition that 
      potentiated its growth occurred in medium containing 1.8 mg Cu/L + 15.0 mg Zn/L, 
      while higher concentrations conferred inhibition. Only Cu compromised the removal 
      rates of N-NH(4)(+) while the effects of Zn were not significant. Contrary, Zn 
      interfered with Ps removal rates, but the impact of Cu was not significant. The 
      greatest Cu applications increased the protein levels by biomass (50.5-55.2 %). 
      Carbohydrate accumulation was favored by conditions that inhibited the 
      development of microalgae due to either limitation or excess of metals. Copper 
      and Zn compromised the levels of lipids, and the control treatment had the 
      highest content (24.5 %). The presence of Cu and Zn changed the dynamics of HRAPs 
      regarding nutrient removal, productivity, and biochemical composition of the 
      biomass.
CI  - Copyright (c) 2021 Elsevier Ltd. All rights reserved.
FAU - Oliveira, Adriana Paulo de Sousa
AU  - Oliveira APS
AD  - Department of Civil Engineering, Federal University of Vicosa, Vicosa, MG, 
      Brazil. Electronic address: adriana.paulo@ufv.br.
FAU - Assemany, Paula
AU  - Assemany P
AD  - Department of Environmental Engineering, Federal University of Lavras, Lavras, 
      MG, Brazil.
FAU - Ribeiro Junior, Jose Ivo
AU  - Ribeiro Junior JI
AD  - Department of Statistics, Federal University of Vicosa, Vicosa, MG, Brazil.
FAU - Covell, Lidiane
AU  - Covell L
AD  - Department of Plant Biology, Federal University of Vicosa, Vicosa, MG, Brazil.
FAU - Nunes-Nesi, Adriano
AU  - Nunes-Nesi A
AD  - Department of Plant Biology, Federal University of Vicosa, Vicosa, MG, Brazil.
FAU - Calijuri, Maria Lucia
AU  - Calijuri ML
AD  - Department of Civil Engineering, Federal University of Vicosa, Vicosa, MG, 
      Brazil.
LA  - eng
PT  - Journal Article
DEP - 20210904
PL  - England
TA  - J Environ Manage
JT  - Journal of environmental management
JID - 0401664
RN  - 0 (Waste Water)
RN  - J41CSQ7QDS (Zinc)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Animals
MH  - Biomass
MH  - *Chlorella
MH  - *Microalgae
MH  - Nitrogen/analysis
MH  - Nutrients
MH  - Ponds
MH  - Swine
MH  - Wastewater
MH  - *Water Purification
MH  - Zinc
OTO - NOTNLM
OT  - Agroindustrial effluent
OT  - Bioremediation
OT  - Chlorella sp.
OT  - Nutrient recovery
EDAT- 2021/09/08 06:00
MHDA- 2021/10/07 06:00
CRDT- 2021/09/07 20:16
PHST- 2021/04/21 00:00 [received]
PHST- 2021/08/06 00:00 [revised]
PHST- 2021/08/30 00:00 [accepted]
PHST- 2021/09/08 06:00 [pubmed]
PHST- 2021/10/07 06:00 [medline]
PHST- 2021/09/07 20:16 [entrez]
AID - S0301-4797(21)01730-8 [pii]
AID - 10.1016/j.jenvman.2021.113668 [doi]
PST - ppublish
SO  - J Environ Manage. 2021 Dec 1;299:113668. doi: 10.1016/j.jenvman.2021.113668. Epub 
      2021 Sep 4.