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Related Concept Videos

Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

475
Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
475
Volatilization01:10

Volatilization

580
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
580

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Measuring volatile emissions from biosolids: A critical review on sampling methods.

Lisha Liu1, Ademir Abdala Prata Junior1, Ruth M Fisher1

  • 1UNSW Water Research Centre, School of Civil and Environmental Engineering, UNSW Australia, Sydney, NSW, 2052, Australia.

Journal of Environmental Management
|May 31, 2022
PubMed
Summary

Sampling volatile emissions from biosolids requires standardized methods. This review analyzes techniques, identifies knowledge gaps, and proposes a management framework for accurate biosolids emission sampling.

Keywords:
BiosolidsFlux hoodGaseous emissionsOdoursWastewaterWind tunnel

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Area of Science:

  • Environmental Science
  • Environmental Engineering
  • Waste Management

Background:

  • Biosolids, a wastewater treatment by-product, generate volatile emissions causing odor and pollution concerns.
  • Current sampling methods for biosolids emissions lack standardized management and best practices, leading to unclear data.

Purpose of the Study:

  • To comprehensively review and critically analyze sampling methods for gaseous emissions from biosolids.
  • To propose a standardized nomenclature and a management framework for biosolids emission sampling.

Main Methods:

  • Literature review of emission sampling techniques (flux hood, wind tunnel, static chamber, headspace devices).
  • Critical analysis of sampling method designs, advantages, and disadvantages.
  • Identification and evaluation of key operational factors influencing emission measurements.

Main Results:

  • A proposed five-category nomenclature for biosolids sampling devices was developed.
  • Key operational factors (fans, purge gas, depth, incubation) influencing measurements were identified.
  • Significant knowledge gaps in biosolids emission sampling methodologies were highlighted.

Conclusions:

  • Standardized sampling methods are crucial for accurate assessment of biosolids emissions.
  • The proposed framework aims to improve understanding and management of sampling methodologies.
  • Addressing knowledge gaps will enhance the reliability of biosolids emission data and reduce community impacts.