干旱区生态环境知识资源中心(Arid): Introducing theSelf-Cleaning FiLtrAtionforWater quaLity SenSors(SC-FLAWLeSS) system

Arid

DOI	10.1002/lom3.10377
	Introducing theSelf-Cleaning FiLtrAtionforWater quaLity SenSors(SC-FLAWLeSS) system
	Khandelwal, Aashish; Gonzalez-Pinzon, Ricardo; Regier, Peter; Nichols, Justin; Van Horn, David J.
通讯作者	Gonzalez-Pinzon, R
来源期刊	LIMNOLOGY AND OCEANOGRAPHY-METHODS
ISSN	1541-5856
出版年	2020
卷号	18 期号:9 页码:467-476
英文摘要	Sensor-based, semicontinuous observations of water quality parameters have become critical to understanding how changes in land use, management, and rainfall-runoff processes impact water quality at diurnal to multidecadal scales. While some commercially available water quality sensors function adequately under a range of turbidity conditions, other instruments, including those used to measure nutrient concentrations, cease to function in high turbidity waters (> 100 nephelometric turbidity units [NTU]) commonly found in large rivers, arid-land rivers, and coastal areas. This is particularly true during storm events, when increases in turbidity are often concurrent with increases in nutrient transport. Here, we present the development and validation of a system that can affordably provide Self-Cleaning FiLtrAtion for Water quaLity SenSors (SC-FLAWLeSS), and enables long-term, semicontinuous data collection in highly turbid waters. The SC-FLAWLeSS system features a three-step filtration process where: (1) a coarse screen at the inlet removes particles with diameter > 397 mu m, (2) a settling tank precipitates and then removes particles with diameters between 10 and 397 mu m, and (3) a self-cleaning, low-cost, hollow fiber membrane technology removes particles >= 0.2 mu m. We tested the SC-FLAWLeSS system by measuring nitrate sensor data loss during controlled, serial sediment additions in the laboratory and validated it by monitoring soluble phosphate concentrations in the arid Rio Grande river (New Mexico, U.S.A.), at hourly sampling resolution. Our data demonstrate that the system can resolve turbidity-related interference issues faced by in situ optical and wet chemistry sensors, even at turbidity levels > 10,000 NTU.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000547181300001
WOS关键词	WATER-QUALITY ; INORGANIC NITROGEN ; PHOSPHORUS UPTAKE ; SENSORS ; FLUORESCENCE ; TURBIDITY ; NITRATE ; RIVERS ; TEMPERATURE ; DYNAMICS
WOS类目	Limnology ; Oceanography
WOS研究方向	Marine & Freshwater Biology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324993
作者单位	[Khandelwal, Aashish; Gonzalez-Pinzon, Ricardo; Regier, Peter; Nichols, Justin] Univ New Mexico, Dept Civil Construct & Environm Engn, Albuquerque, NM 87131 USA; [Van Horn, David J.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Khandelwal, Aashish,Gonzalez-Pinzon, Ricardo,Regier, Peter,et al. Introducing theSelf-Cleaning FiLtrAtionforWater quaLity SenSors(SC-FLAWLeSS) system[J],2020,18(9):467-476.
APA	Khandelwal, Aashish,Gonzalez-Pinzon, Ricardo,Regier, Peter,Nichols, Justin,&Van Horn, David J..(2020).Introducing theSelf-Cleaning FiLtrAtionforWater quaLity SenSors(SC-FLAWLeSS) system.LIMNOLOGY AND OCEANOGRAPHY-METHODS,18(9),467-476.
MLA	Khandelwal, Aashish,et al."Introducing theSelf-Cleaning FiLtrAtionforWater quaLity SenSors(SC-FLAWLeSS) system".LIMNOLOGY AND OCEANOGRAPHY-METHODS 18.9(2020):467-476.