Waste Sorting Analysis 01

Waste Sorting Analysis

Overview

  • Conducted by Prof. Dr. Gert Morscheck, Rostock University

  • Lecture presented on waste sorting analysis and waste sampling.

Waste Characterization

Key Components

  • Basics of sorting analysis

  • Sampling procedures

  • Calculations involved in analysis

  • Example studies outlining heating value and gas yield

  • Investigation reporting

Importance of Waste Sorting Analysis

Objectives

  • Understand composition of waste (types, groups of substances)

  • Assess particle size and recyclability

  • Identify chemical and physical properties:

    • Mass, mass fraction, water content

    • Heating value, loss on ignition, organic fraction

    • Fermentability, gas yield, compactability

    • Pollutant content, elutability, pH, salinity, nutrient content

Specifications for Conducting Waste Analyses

Guidelines & Standards

  • Adhere to regulations from German federal states (e.g., Saxony)

  • Follow methodologies laid out by European Commission & CEN standards

    • EN 14899, TR 15310 series, EN 16457

Application Sectors of Waste Sorting Analyses

Types of Waste Analyzed

  • Residual waste (Municipal Solid Waste)

  • Biowaste (to measure impurities)

  • Packaging waste (to evaluate types and impurities)

  • Paper and cardboard waste (to determine impurities)

  • Variations in waste financing systems in Germany

Goals of Waste Studies

Objectives

  • Determine quantity flows (recyclables/residues)

  • Design waste collection systems and schedules

  • Plan and size treatment plants

  • Forecast future waste generation trends

  • Calculate emissions for the IPCC

  • Develop waste management plans

Planning Waste Sorting

Basics

  • Aim for representative random sampling of waste

  • Target seasonal variations in waste generation

  • Consider layer characteristics of the study area (e.g., urban/rural)

  • Need for statistical precision and appropriate sample sizes

Technical and Staff Requirements

Necessary Infrastructure

  • Sorting hall, collection trucks, sampling containers

  • Mechanical sieving units, sorting tables/belts

  • Balance for samples, labels, and health safety equipment

Health and Safety

Workplace Procedures

  • Standard safety measures to protect sorting staff

  • Address risks associated with biological agents

  • Daily cleaning protocols and prohibition of eating/drinking in sorting areas

  • Vaccination recommendations for staff

Waste Sorting Process

Procedure

  • Steps include unloading, cutting bags, screening

  • Hand sorting for fractions above 40 mm

  • Weight documentation for all fractions

Classification of Waste Fractions

Sorting Categories

  1. Organics (kitchen waste, garden waste)

  2. Paper, cardboard, packaging types

  3. Glass (hollow, colored, etc.)

  4. Plastics (packaging, household items)

  5. Textiles (clothing, other fibers)

  6. Metals (ferrous, non-ferrous)

  7. Composite materials

  8. Hazardous substances (batteries, chemicals)

  9. Hygiene materials (personal care products)

  10. Other unclassified waste types