Mix
What is the 5 main categories of solid waste?
what are incineration?
Incineration is there you have a waste material that have contaminants. Where the waste materials will be burnt, at a really high temperature. In that way that the contaminants can be destroyed, it will happen in a combustion furnace. Incineration is what you call a waste treatment.
what do waste minimization provide with?
It helps with eliminate the generation of harmful and persistent waste. It can protect the environment and provide good economic and business practices.
Name different kind of waste
Food waste
Construction waste
Electronic waste
Solid waste
Liquid waste
Hazardous waste
Explain recycling as a waste minimization technique
Recycling can happen 2 different ways
- On site recovery and reuse = can reuse the wasted materials
- Creation of useful byproducts = transfrom the wasted materials into another material/product
What factors affecting waste generation?
what do the incineration method convert the wast into?
Ash
- Formed by the inorganic constituents.
- Form of solid lumps
Gas
- Must be cleaned before it comes out to the atmosphere.
Heat
- The heat that will be generated can be used to generate electric power.
What are some of the economic benefits about waste minimization?
Cost Savings = Proper waste management minimizes disposal and landfill fees, leading to significant cost savings for municipalities and businesses.
Resource Recovery =Recycling and reusing materials in waste contribute to revenue generation through the sale of recycled materials.
Job Creation = Waste management, including recycling and collection, creates employment opportunities in sorting, processing, transportation, and facility maintenance.
Innovation and Technology Development =The demand for efficient waste management drives innovation and technological advancements in the waste management sector.
Waste-to-Energy Projects = Projects such as incineration and biogas production offer alternative energy sources, contributing to energy diversification.
Public Health Cost Savings = Proper waste disposal contributes to public health, potentially resulting in cost savings in healthcare.
Tourism and Aesthetics = A clean environment enhances the appeal of a region, positively impacting tourism and property values.
Waste Reduction Strategies = Encouraging waste reduction strategies, such as reusable products, leads to long-term cost savings by reducing overall waste volume.
what are the to types of collection system? (driver)
Explain the product modification technique
What are some of the types of municipal solid waste?
Advantages:
Disadvantages:
What are some of the benefits and importance of recycling?
Resource conservation = Reusing materials reduces the need extracting new raw materials, conserving valuable natural resources
Energy savings = Recycling often requires less energy than manufacturing products form raw materials
Greenhouse gas reduction = Recycling produces fewer greenhouse gas emissions
Waste reduction = Recycling reduces the amount of waste sent to landfills, extending their lifespan and minimizing environmental impact.
Biodiversity protection = Recycling helps prevent habitat destruction and loss of biodiversity associated with extracting raw materials.
Water conservation = Recycling reduces the demand for water in the extraction and processing of raw materials.
Reduced pollution = Recycling decreases pollution associated with the extraction, transportation, and processing of raw materials.
Long-term sustainability = Embracing recycling supports a sustainable approach to consumption, ensuring resources for future generation.
Explain what HCS is and what it stand for (collection system)
Hauled container system
Definition:
Operation:
Why do we use life cycle assessment?
explain the difference between
Separated waste has been separated befor collecting, and therefore be collected before it can be recycled.
were commingled waste is all type of waste in one bin
What is anaerobic digestion?
Anaerobic digestion is where bacteria will break down organic matter. Like, wastewater biosolids, food waste, and animal manure. The method of anaerobic digestion is a biological process where microorganisms will break down the biodegradable material, where there must be oxygen. Where it will be biogas and then it can used as fuel.
Is a process where the microorganisms break down the biodegradable material in the absence of oxygen.
LCA = life cycle assessment
It is a technique for assessing the potential environmental aspect
Explain what SCS is and what it stand for (collection system)
SCS = Stationary container system
Definition:
Operation:
what are some of the option to managing waste?
What is commingled waste collection?
Different type of waste in one bin when collected.
Residential = Set out / set back, Curb, Ally, Backyard
Commercial industrial = Movable large containers
What are the 4 key stages of anaerobic digestion? and explain short about each stage
Hydrolysis = Here some of the certain bacteria will break down some of the organic polymers. Like carbohydrates, which will be turned into simple sugars.
Acidogenesis = In this next stage, is where a bacteria called acidogenic bacteria, will take the simple sugars from the hydrolysis stage and convert them into carbon dioxide, ammonia, organic acids, and hydrogen.
Acetogenesis = Here a bacteria called acetogenic bacteria, will take the organic acids from the acidogenesis stage and convert them into acetic acid, carbon dioxide, and hydrogen.
Methanogenesis = This is the last stage of the anaerobic digestion process, where a single-celled organisms will convert intermediate products that have been produces in the 3 stages before, and convert them to methane, water, and carbon dioxide.
what are the 4 linked components to LCA?
1) Goal definition and scoping = Identifying the LCA purpose
2) Life-cycle inventory = Quantifying the energy and raw materials inputs and environmental releases associated with each stage of production.
3) Impact analysis = Assessing the impacts on human health and the environment associated with energy and raw materials inputs.
4) Improvement analysis = Interpret the results of the impact assessment to suggest improvements to reduce energy and materials inputs
What are the advantages and disadvantages with anaerobic digestion?
Advantages:
Disadvantages:
What are 4 potential uses of materials recovered from municipal solid wastes?
Recycled Paper Products = Reusing paper from municipal solid waste for newspapers, cardboard, and packaging.
Plastic Recycling for Manufacturing = Repurposing plastics from waste into containers, bottles, and construction materials.
Compost for Soil Enrichment = Turning organic waste into compost for fertilizing soil in agriculture and landscaping.
Metals for Manufacturing and Construction = Recycling metals like aluminum and steel from waste for new products and construction materials.