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PH12020050499A1 - A portable water quality assessment device - Google Patents

A portable water quality assessment device

Info

Publication number
PH12020050499A1
PH12020050499A1 PH1/2020/050499A PH12020050499A PH12020050499A1 PH 12020050499 A1 PH12020050499 A1 PH 12020050499A1 PH 12020050499 A PH12020050499 A PH 12020050499A PH 12020050499 A1 PH12020050499 A1 PH 12020050499A1
Authority
PH
Philippines
Prior art keywords
microplastics
sizes
detect
present
water quality
Prior art date
Application number
PH1/2020/050499A
Inventor
David Elijah Corsini C Atup
Ro-Ann S Laude
Josefino Nino O Ligan
Danielle G Pepito
Original Assignee
Philippine Science High School Central Visayas Campus
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philippine Science High School Central Visayas Campus filed Critical Philippine Science High School Central Visayas Campus
Priority to PH1/2020/050499A priority Critical patent/PH12020050499A1/en
Priority to PCT/PH2021/050016 priority patent/WO2022119460A1/en
Publication of PH12020050499A1 publication Critical patent/PH12020050499A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0227—Investigating particle size or size distribution by optical means using imaging; using holography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1012—Calibrating particle analysers; References therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1429—Signal processing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1429—Signal processing
    • G01N15/1433—Signal processing using image recognition
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0042—Investigating dispersion of solids
    • G01N2015/0053—Investigating dispersion of solids in liquids, e.g. trouble
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N2015/0294—Particle shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N2015/1486—Counting the particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N2015/1493—Particle size
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N2015/1497—Particle shape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Hydrology & Water Resources (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The presence of microplastics in the natural environment is considered as a global threat to marine biodiversity. At present, there is a need for innovative solutions to address this issue and provide additional baseline data to researchers. An innovative device was fabricated to preliminarily assess microplastic sizes on-site setting. The present invention used a camera and a portable microscope programmed to detect and approximate size of a photographed microparticles. The invention could lessen hassle and cost of having it tested in laboratories and other practical methods that require sample to be delivered to the testing centers. In this work, a conversion factor of 1 mm: 680 pixels was utilized from diffraction grating calibration experiment. The invention was able to detect microplastics ranging from 29.4 – 30.3 µm. Data clearly revealed that the invention could successfully estimate the sizes of microscopic debris.
PH1/2020/050499A 2020-12-03 2020-12-03 A portable water quality assessment device PH12020050499A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PH1/2020/050499A PH12020050499A1 (en) 2020-12-03 2020-12-03 A portable water quality assessment device
PCT/PH2021/050016 WO2022119460A1 (en) 2020-12-03 2021-05-31 A portable water quality assessment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PH1/2020/050499A PH12020050499A1 (en) 2020-12-03 2020-12-03 A portable water quality assessment device

Publications (1)

Publication Number Publication Date
PH12020050499A1 true PH12020050499A1 (en) 2022-06-13

Family

ID=81853440

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2020/050499A PH12020050499A1 (en) 2020-12-03 2020-12-03 A portable water quality assessment device

Country Status (2)

Country Link
PH (1) PH12020050499A1 (en)
WO (1) WO2022119460A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117129274B (en) * 2023-07-14 2024-06-18 中国科学院地理科学与资源研究所 An adaptive long-term monitoring method for microplastics in water based on screen clogging detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1597575A4 (en) * 2003-02-03 2007-08-08 Us Gov Sec Army APPARATUS AND METHOD FOR PORTABLE AUTOMATIC BIOLOGICAL MONITORING OF WATER QUALITY
US20080314807A1 (en) * 2005-09-23 2008-12-25 Max Rudolf Junghanns Systems and Methods For Treating Water
US10337997B2 (en) * 2015-10-15 2019-07-02 Woods Hole Oceanographic Institution System for rapid assessment of water quality and harmful algal bloom toxins
US20220212164A1 (en) * 2019-05-03 2022-07-07 Teknologian Tutkimuskeskus Vtt Oy A method of capturing and analysing microplastic particles from aqueous medium
CA3100245C (en) * 2019-05-07 2021-08-03 Roshan Water Solutions Incorporated Portable device and system for rapid detection of a bacterial cell in fluid samples

Also Published As

Publication number Publication date
WO2022119460A1 (en) 2022-06-09

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