干旱区生态环境知识资源中心(Arid): Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance

Arid

DOI	10.3390/agronomy10081150
	Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance
	Bergonzoli, Simone; Brambilla, Massimo; Romano, Elio; Saia, Sergio; Cetera, Paola; Cutini, Maurizio; Toscano, Pietro; Bisaglia, Carlo; Pari, Luigi
通讯作者	Saia, S
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2020
卷号	10 期号:8
英文摘要	Irrigation with wastewater can strongly contribute to the reduction of water abstraction in agriculture with an especial interest in arid and semiarid areas. However, its use can have drawbacks to both soil and micro-irrigation systems, especially when the total solids in the wastewater are high, such as in digestate liquid fractions (DLF) from plant material. The aim of this study was thus to evaluate the performances of a serpentine shaped micro-emitter injected with a hydrocyclone filtered DLF (HF-DLF) from corn + barley biomass and evaluate the traits of the liquid released within a 8-h irrigation cycle. HF-DLF was injected at 10%, 25%, and 50% dilution compared to tap water (at pH = 7.84) and the system performances were measured. No clogging was found, which likely depended on both the shape of the emitter and the high-pressure head (200 kPa). HF-DLF dilution at 10%, 25%, and 50% consisted in +1.9%, +3.5, and -4.9% amount of liquid released compared to the control. Fluid temperature during irrigation (from 9:00 to 17:00) did not explain the difference in the released amounts of liquid. In 10% HF-DLF % and 25% HF-DLF, a pH difference of + 0.321 +/- 0.014 pH units compared to the control was found, and such difference was constant for both dilutions and at increasing the time. In contrast, 50% HF-DLF increased pH by around a half point and such difference increased with time. Similar differences among treatments were found for the total solids in the liquid. These results indicate that 50% HF-DLF was accumulating materials in the serpentine. These results suggest that a low diluted HF-DLF could directly be injected in irrigation systems with few drawbacks for the irrigation system and contribute to water conservation since such wastewater are available from the late spring to the early fall, when water requirements are high.
英文关键词	clogging drip irrigation emitter hydrocyclone digestate liquid fraction wastewater
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000568613800001
WOS关键词	IRRIGATION ; DRIPPERS ; QUALITY
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326201
作者单位	[Bergonzoli, Simone; Brambilla, Massimo; Romano, Elio; Cutini, Maurizio; Toscano, Pietro; Bisaglia, Carlo] CREA IT, Res Ctr Engn & Agrofood Proc, Council Agr Res & Econ, I-24047 Bergamo, Italy; [Saia, Sergio; Cetera, Paola; Pari, Luigi] Res Ctr Engn & Agrofood Proc CREA IT, Council Agr Res & Econ, Via Pascolare 16, I-00015 Rome, Italy
推荐引用方式 GB/T 7714	Bergonzoli, Simone,Brambilla, Massimo,Romano, Elio,et al. Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance[J],2020,10(8).
APA	Bergonzoli, Simone.,Brambilla, Massimo.,Romano, Elio.,Saia, Sergio.,Cetera, Paola.,...&Pari, Luigi.(2020).Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance.AGRONOMY-BASEL,10(8).
MLA	Bergonzoli, Simone,et al."Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance".AGRONOMY-BASEL 10.8(2020).