Assessing and Evaluating Environmentally Sound Technologies Dr. Hari Srinivas Chief, Urban Environmental Management Unit International Environmental Technology Centre United Nations Environment Programme (UNEP-IETC)
Environmentally Sound Technologies 1
IETC and Agenda 21
The mandate of IETC is based on Agenda 21 of the 1992 United Nations Conference on Environment and Development (UNCED)
The main function of IETC is to promote the application of environmentally sound technologies (ESTs)
Chapter 34 of Agenda 21 defines ESTs as technologies which:
“ protect the environment,
are less polluting,
use all resources in a more sustainable manner,
recycle more of their wastes and products, and
handle residual wastes in a more acceptable manner than the technologies for which they are substitutes”
Agenda 21 also states that:
“ new and efficient technologies will be essential to increase the capabilities (in particular of developing countries) to achieve sustainable development, sustain the world’s economy, protect the environment, and alleviate poverty and human suffering.
Inherent in these activities is the need to address the improvement of technology currently used and its replacement, when appropriate, with more accessible and more environmentally sound technology”.
As stated in Agenda 21,
ESTs in the context of pollution are “process and product technologies that generate low or no waste, for the prevention of pollution” .
They also cover “end of the pipe technologies for treatment of pollution after it has been generated” .
Furthermore, ESTs are not just individual technologies, but total systems that include “know-how, procedures, goods and services, and equipment as well as organizational and managerial procedures” .
Thus the definition of ESTs:
applies to all technology and the transition of all technology to more “environmentally sound” technology.
captures the full life cycle flow of the material, energy and water in the production and consumption system;
covers the full spectrum from basic technologies that are adjunct to the production system, to fully integrated technologies where the environmental technology is the production technology itself;
includes closed system technologies (where the goal is zero waste and/or significant reductions in resource use), as well as environmental technologies that may result in emissions and high levels of resource use;
considers technology development within both the ecological and social context.
Taxonomy of Sustainable Technologies Technologies Environmentally Sound Technologies Non - Environmentally Sound Technologies Environmental Technologies Non - Environmental Technologies Sustainable Technologies Transitionary Technologies Un - sustainable Technologies
Environmental Sustainability
Protection of watersheds, aquifers and freshwater ecosystems and resources.
Protection and enhancement of air quality.
Sustainable use and conservation of land, forests, wildlife, fisheries and water resources.
Protection of biological resources, ecosystems and life support systems.
Sustainable or optimum use of land, forest, energy and mineral resources.
Reduced local, regional and global environmental impacts of fossil fuels and increased development and use of renewable alternatives.
Integration of environmental principles in public information and education programs.
Sustainable use of natural resources.
ESTs and Sustainable Development Integrated Ecosystems Management Prevention Monitoring & Assessment Control ESTs Remediation & Restoration
Definition of ESTs under Agenda 21 … is broader and includes technologies:
with the potential for significantly improved environmental performance relative to other technologies, and
that use resources in a sustainable manner
Framework for the Identification and Selection of ESTs ENVIRONMENTAL INFORMATION (How to collect and analyze…) ENVIRONMENTAL PERFORMANCE INDICATORS (How to define and apply…) ENVIRONMENTAL PERFORMANCE CRITERIA (How to define and apply…) GUIDELINES FOR ASSESSING AND EVALUATING ENVIRONMENTAL PERFORMANCE (How to define and apply…) IDENTIFICATION AND SELECTION OF ESTs ADOPTION AND USE OF ESTs
EST Criteria 2
Generic EST Criteria
Protection of air, water, land and biodiversity
Environmentally sound technologies and management practices
Sustainable resource management
Technical Suitability
Addresses fundamental scientific and engineering principles (i.e., laws of thermodynamics and reactivity)
Production or process yield
Contaminant removal rates or treatment efficiency
Potential for generation of secondary pollutants/byproducts
Noise
Thermal losses and radiation emissions
Technical Suitability (cont’d)
Performance at different settings and different locations
Sensitivity to specific operating conditions
Reliability
Replicability
Potential for system failure
Profiling of risks and uncertainties
Compliance with Regulations and Standards
Quantity of waste generated (water, air and solids)
Quantity of waste controlled by environmental permits
Compliance with local and regional standards
Compliance with MEAs (i.e., POPs, Biosafety, etc.) and other internationally recognised standards (i.e., ISO, etc.)
Availability of reliable data
Part of a 3 rd party assessment programme (i.e., Ecolabelling, ETV, etc.)
Eco-Efficiency and Biodiversity
Useful life (in accordance with optimal performance specifications)
Efficiency of energy, water and materials use relative to the service provided
Lifecycle performance (i.e., overall GHG emissions throughout lifecycle)
Use of renewable resources
Protection of Water Resources
Water use
Conservation of water
% use of recycled water
Wastewater treatment requirements
Level of treatment (primary, secondary, tertiary)
Overall water efficiency
Optimisation of Materials and Energy Use
Use of fuels and energy resources
Quantity of renewable resources
Quantity of non-renewable resources
% of recyclable and reused materials in the production process
Use of environmentally friendly materials
Minimisation of Toxic Materials and Waste
Quantity of waste (air, water and solids)
Quantity of toxic and hazardous waste used and generated
% of waste materials used as raw materials for other industries (i.e., based on industrial ecology and CASE principles)
Quantity of byproduct recovered
Protection of Land Resources
Space required for construction
Compatibility with immediate or adjoining facilities and systems
Transportation and materials flow requirements
Potential for soil contamination
Potential for geomorphology, landscape and eco-hydrological impacts
Protection of the Atmosphere
Air emissions
Potential for long range transport of atmospheric pollutants
Potential for climate change impacts
Requirements for Assessing and Evaluating ESTs
Defining the context in relation to sustainability
Stakeholder involvement and collaboration
Defining the boundaries (or scope) of the assessment
Monitoring and reporting
Stakeholder Involvement and collaboration
Determining expectations
Defining policies and strategies
Building local capacity
Applying Various Assessment Tools
Technology Assessment
Environmental Impact Assessment
Risk Assessment
Life Cycle Assessment
Ecosystems Valuation
ESTs and Forest Governance 3
ESTs play a critical, but one part of, a comprehensive approach to forest management and governance. ESTs and Forest Governance
In addition to everything we have seen so far … ESTs have more roles to play! ESTs and Forest Governance
ESTs and Forest Governance ESTs Community-driven planning and actions Job creation and income generation Help reduce disaster risk Manage forest waste and non-timber debris
Thank you! Please keep yourself informed through the IETC Website: www.unep.or.jp
0 comments
Post a comment