TY - JOUR

T1 - Rapid evaluation of integral quality and safety of surface and waste waters by a multisensor system (electronic tongue)

AU - Legin, Evgeny

AU - Zadorozhnaya, Olesya

AU - Khaydukova, Maria

AU - Kirsanov, Dmitry

AU - Rybakin, Vladimir

AU - Zagrebin, Anatoly

AU - Ignatyeva, Natalia

AU - Ashina, Julia

AU - Sarkar, Subrata

AU - Mukherjee, Subhankar

AU - Bhattacharyya, Nabarun

AU - Bandyopadhyay, Rajib

AU - Legin, Andrey

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The paper describes a wide-range practical application of the potentiometric multisensor system (MS) (1) for integral safety evaluation of a variety of natural waters at multiple locations, under various climatic conditions and anthropogenic stress and (2) for close to real consistency evaluation of waste water purification processes at urban water treatment plants. In total, 25 natural surface water samples were collected around St. Petersburg (Russia), analyzed as is, and after ultrasonic treatment. Toxicity of the samples was evaluated using bioassay and MS. Relative errors of toxicity assessment with MS in these samples were below 20%. The system was also applied for fast determination of integral water quality using chemical oxygen demand (COD) values in 20 samples of water from river and ponds in Kolkata (India) and performed with an acceptable precision of 20% to 22% in this task. Furthermore, the MS was applied for fast simultaneous evaluation of COD, biochemical oxygen demand, inorganic phosphorous, ammonia, and nitrate nitrogen at two waste water treatment plants (over 320 samples). Reasonable precision (within 25%) of such analysis is acceptable for rapid water safety evaluation and enables fast control of the purification process. MS proved to be a practicable analytical instrument for various real-world tasks related to water safety monitoring.

AB - The paper describes a wide-range practical application of the potentiometric multisensor system (MS) (1) for integral safety evaluation of a variety of natural waters at multiple locations, under various climatic conditions and anthropogenic stress and (2) for close to real consistency evaluation of waste water purification processes at urban water treatment plants. In total, 25 natural surface water samples were collected around St. Petersburg (Russia), analyzed as is, and after ultrasonic treatment. Toxicity of the samples was evaluated using bioassay and MS. Relative errors of toxicity assessment with MS in these samples were below 20%. The system was also applied for fast determination of integral water quality using chemical oxygen demand (COD) values in 20 samples of water from river and ponds in Kolkata (India) and performed with an acceptable precision of 20% to 22% in this task. Furthermore, the MS was applied for fast simultaneous evaluation of COD, biochemical oxygen demand, inorganic phosphorous, ammonia, and nitrate nitrogen at two waste water treatment plants (over 320 samples). Reasonable precision (within 25%) of such analysis is acceptable for rapid water safety evaluation and enables fast control of the purification process. MS proved to be a practicable analytical instrument for various real-world tasks related to water safety monitoring.

KW - Bioassay technique

KW - Cavitation ultrasound treatment

KW - Multisensor system

KW - Natural and waste water safety evaluation

KW - Water toxicity measurements

KW - water toxicity measurements

KW - TERMS

KW - TOXICITY

KW - multisensor system

KW - BIOASSAY

KW - IRRADIATION

KW - ULTRASOUND

KW - ORGANICS

KW - bioassay technique

KW - cavitation ultrasound treatment

KW - natural and waste water safety evaluation

UR - http://www.scopus.com/inward/record.url?scp=85065482440&partnerID=8YFLogxK

U2 - 10.3390/s19092019

DO - 10.3390/s19092019

M3 - Article

C2 - 31035734

AN - SCOPUS:85065482440

VL - 19

JO - Sensors

JF - Sensors

SN - 1424-3210

IS - 9

M1 - 2019

ER -