Marhara's Waste Sorting Glossary

1. Places and Structures

1. LTCR - Legal Trash Collection Route - Government Regulated Municipal Waste Management Stream

2. Sorting Station - a place where trash of all kinds gets separated into different categories

3. Intercept barrier - a barrier installed at fixed points to trap trash moving with flowing water

4. Bin - a legal trash collection point along the LTCR

5. Illegal Dumpsite (IDS) - an illegitimate bin, serves like a bin but disconnected to the LTCR

6. Illegal Incineration Site (ILINS) - an illegitimate and unregulated trash burning site

2. Actions

1. Sorting - the act of separating trash into different categories

2. Sorting Phases - The sequential ladder of sorting trash into categories, sub categories, and sub-sub categories

3. Purification - the process of drying, cleaning, and removing organic bycatch from a batch of collected trash

3. Data Descriptions

1. Sorting resolution - an ordinal measure to describe how strictly selected the members within a group have been selected. The higher the resolution, the smaller the variance between the members of the group. 

1. (e.g., low resolution: 

1. recyclable, 

2. non-recyclable, 

3. Bycatch,

2. high resolution: 

1. PET, 

2. HDPE

3. PP, 

4. Multilayer, 

5. Opaque Flexibles, 

6. Transparent Flexibles,

7. Non-identifiable Rigids,

8. PS

9. Organic Bycatch

10. Soil, dirt/mud Bycatch

11. Water weight

2. Shrinkage % - the percentage of weight margin (pre-purification - post-purification) relative to the pre-purification weight. 

4. Items

1. Bycatch - a measurement describing the amount of materials that aren’t intended to be cleaned up but got caught alongside the trash during the process of cleaning up, different cleanup methods and tools will result in varying levels of bycatch.

2. Organic Bycatch - materials that originate from a biological source that can decompose naturally.

3. Oil based trash- trash made out of fossil fuels, anything plastic. 

4. Non-oil based trash - trash made out of anything other than plastics.(e.g., glass, metals)

5. Thermoplastics - a type of plastic that can be melted at a certain temp and reshaped and maintain structural and chemical integrity,

6. Thermoset Plastics - a type of plastic that cannot be melted, if heated will not enter a melting stage and go straight to burning stage. 

7. PET - Polyethylene Terephthalate (code 1) - a type of thermoplastic commonly used for drinking bottles and is recyclable

8. HDPE - High Density Polyethylene (Code 2) - a type of thermoplastic commonly used for bottle caps and opaque milk jugs.

9. PP - Polypropylene (code 5) - a type of thermoplastic commonly used for plastic cups and food containers.

10. Rigids - plastics that have a rigid form.

11. Flexibles - plastics that have a flexible form. 

12. Multilayers - inseparable composite materials, such as plastics layered with aluminium and cannot be isolated from each other.