CIWM/WAMITAB Continuing Competence€¦ · 3.1 Know the types of aerobic composting facility that...

Aerobic Composting Revision Summary

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Aerobic Composting

Revision Summary

Version 1, January 2019

CIWM/WAMITAB

Continuing Competence

Part of the CIWM/WAMITAB

Operator Competence Scheme


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Changes are made periodically to the information contained within the document so for the latest

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http://www.wamitab.org.uk/

mailto:[email protected]


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Contents Introduction ............................................................................................................................................ 5

About WAMITAB ................................................................................................................................. 5

What is Continuing Competence? ...................................................................................................... 5

About this Revision Summary ............................................................................................................. 5

1. Waste Acceptance Procedures ........................................................................................................... 6

Learning Outcomes ............................................................................................................................. 6

Where do I find this information? ...................................................................................................... 6

Notes ................................................................................................................................................... 6

2. Feedstocks ........................................................................................................................................... 7



Notes ................................................................................................................................................... 7

3. Accepting Animal By-Products ............................................................................................................ 8



Notes ................................................................................................................................................... 8

4. Odour Control ..................................................................................................................................... 9



Notes ................................................................................................................................................... 9

5. Bioaerosols Management ................................................................................................................. 10

Learning Outcomes ........................................................................................................................... 10

Where do I find this information? .................................................................................................... 10

Notes ................................................................................................................................................. 10

6. Standards .......................................................................................................................................... 11



Notes ................................................................................................................................................. 11

7. Process Principles .............................................................................................................................. 12


Notes ................................................................................................................................................. 12


8. Other Issues ...................................................................................................................................... 13


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Notes ................................................................................................................................................. 13

9. Health and Safety .............................................................................................................................. 14



Notes ................................................................................................................................................. 14


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Introduction

About WAMITAB

WAMITAB is an awarding organisation and charity that develops qualifications for those working in

cleaning; street cleansing; facilities management; resource management and recycling and parking

from operative through to management level.

Since it was formed in 1989, WAMITAB has evolved in line with the convergence between the

sectors with a clear focus on promoting and supporting environmental sustainability. With over 120

qualification pathways and 70 quality assured centres, WAMITAB offers an unrivalled specialist

network to support staff development.

What is Continuing Competence?

The CIWM/WAMITAB continuing competence scheme is designed to ensure that the technically

competent person (holds a certificate of technical competence, units or a qualification that is part of

the CIWM/WAMITAB Operator Competence Scheme) on a waste site has knowledge and skills that

keep pace with changes made across the waste management industry, such as the introduction of

new legislation, technologies and techniques.

The CIWM/WAMITAB continuing competence scheme requires technically competent people in

England and Wales to pass an assessment that demonstrates individuals have kept their competence

up to date.

Keeping competence up to date is becoming increasingly important across the UK as society starts to

recognise the crucial role that waste and resource management industry professionals play in

ensuring that the 434 million tonnes of waste generated every year can be treated, reused and

recycled to produce a product that will contribute to further economic growth.

About this Revision Summary

WAMITAB recognise the diverse needs of learners within the sectors we represent. To support those

individuals undertaking their Continuing Competence test, we have developed this revision

summary.

This revision summary is designed to support you preparation by linking the learning outcomes with

the areas that may come up during the Continuing Competence test.


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1. Waste Acceptance Procedures

Learning Outcomes

1.1 Know information, checks and records required prior to accepting waste.

1.2 Know the acceptance procedures for waste that arrives at the aerobic composting facility, including identification of contamination.

1.3 Know the requirements for waste reception and storage at the aerobic composting facility.

1.4 Know the procedures for waste rejection at an aerobic composting facility.

1.5 Know the procedures for emergency waste acceptance.

Where do I find this information?

Environment Agency (2013) How to comply with your environmental permit. Additional technical guidance for composting and aerobic treatment sector

Notes

http://www.organics-recycling.org.uk/uploads/article3129/Compost%20Technical%20Guidance%20FINAL%20fianl%20%20VERSION%201%200%20Nov%20%202013%20(2)%20(3).pdf




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2. Feedstocks

Learning Outcomes

2.1 Know the characteristics that should be tested as part of a detailed feedstock characterisation as specified as Best Available Techniques (BAT).

2.2 Know why non-source segregated feedstocks potentially pose a greater environmental risk when using the resulting compost-like output.

2.3 Know the consequences of using contaminated feedstocks for the aerobic composting process.

2.4 Know the consequences of using contaminated feedstocks for the Mechanical Biological Treatment process.

2.5 Know how the residual wastes from an aerobic composting facility should be controlled and managed.



Environment Agency (2012) Quality protocol: compost

DEFRA (2013) Mechanical Biological Treatment of Municipal Solid Waste

SR2012 No7: Composting in open systems (waste operation – no more than 75 tonnes per day)

Natural Resources Wales Standard Rules Sets

Notes




https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/297215/geho0812bwpl-e-e.pdf

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/221039/pb13890-treatment-solid-waste.pdf

https://www.gov.uk/government/publications/sr2012-no7-composting-in-open-systems

https://www.gov.uk/government/publications/sr2012-no7-composting-in-open-systems

https://naturalresources.wales/permits-and-permissions/waste/waste-permits/apply-for-a-new-standard-permit-for-waste-operations/?lang=en


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3. Accepting Animal By-Products

Learning Outcomes

3.1 Know the types of aerobic composting facility that can handle catering waste according to Animal By-Product Regulations.

3.2 Know the requirements for record keeping regarding Animal By-Products Regulations relating to food waste/catering waste delivered to the site.

3.3 Know what a Hazard Analysis Critical Control Point plan is in relation to gaining Animal By-Products Regulations approval and what steps are required.

3.4 Know what is required for sampling and testing of pathogens.


Gov.uk (2014) Using animal by-products at compost and biogas sites


Defra (2014) Guidance on Composting and Biogas (Anaerobic Digestion) of

Animal By-Products

Defra (2018) Animal by-product categories, site approval, hygiene and

disposal

BSI PAS 100: producing quality compost

Regulation (EC) 852/2004 on the hygiene of foodstuffs

Gov.uk (2018) Laboratory testing requirements for animal by-products (ABPs)

Notes

https://www.gov.uk/guidance/using-animal-by-products-at-compost-and-biogas-sites




http://adbioresources.org/uploads/adverts/APHA_Guidance_on_Composting__Biogas_(AS)_of_ABP.pdf

http://adbioresources.org/uploads/adverts/APHA_Guidance_on_Composting__Biogas_(AS)_of_ABP.pdf

https://www.gov.uk/guidance/animal-by-product-categories-site-approval-hygiene-and-disposal#keeping-records-and-labelling

https://www.gov.uk/guidance/animal-by-product-categories-site-approval-hygiene-and-disposal#keeping-records-and-labelling

http://www.wrap.org.uk/content/bsi-pas-100-producing-quality-compost

https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2004:139:0001:0054:en:PDF

https://www.gov.uk/guidance/laboratory-testing-requirements-for-animal-by-products-abps#what-bacteria-you-need-to-test-for-and-when-to-take-samples

https://www.gov.uk/guidance/laboratory-testing-requirements-for-animal-by-products-abps#what-bacteria-you-need-to-test-for-and-when-to-take-samples


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4. Odour Control

Learning Outcomes

4.1 Know under what circumstances odours may be produced during aerobic biological treatment processes. 4.2 Know the odour problems associated with aerobic biological treatment processes and how to control them. 4.3 Know the methods used to monitor odour on an aerobic composting facility. 4.4 Know alternative methods to biofilters for odour control. 4.5 Know the limitations of using sniff testing for monitoring odours. 4.6 Know the information required in an odour management plan and why it is necessary. 4.7 Know how to ensure a biofilter is appropriately designed to meet the need of an aerobic treatment facility. 4.8 Know the optimal operating conditions for biofilters and how these can be designed/maintained.



Environment Agency (2011) H4 Odour Management

Natural Resources Wales (2014) How to comply with your environmental

permit Additional guidance for: H4 Odour Management

Environment Agency (2010) Odour Management Plans for Waste Handling Facilities

Organics Recycling Group (2007) An industry guide for the prevention and control of odours at biowaste processing facilities

Notes




https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/296737/geho0411btqm-e-e.pdf

https://naturalresources.wales/permits-and-permissions/environmental-permits/horizontal-guidance/?lang=en#documentDownloads

https://naturalresources.wales/permits-and-permissions/environmental-permits/horizontal-guidance/?lang=en#documentDownloads

https://webarchive.nationalarchives.gov.uk/20140328090207/http:/www.environment-agency.gov.uk/homeandleisure/pollution/odour/136139.aspx

https://webarchive.nationalarchives.gov.uk/20140328090207/http:/www.environment-agency.gov.uk/homeandleisure/pollution/odour/136139.aspx

http://www.organics-recycling.org.uk/dmdocuments/Industry_guide_for_prevention_and_control_of_odours.pdf

http://www.organics-recycling.org.uk/dmdocuments/Industry_guide_for_prevention_and_control_of_odours.pdf


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5. Bioaerosols Management

Learning Outcomes

5.1 Know what bioaerosols are and what causes bioaerosols. 5.2 Know the factors affecting a bioaerosol risk assessment for sensitive receptors. 5.3 Know how and when to monitor bioaerosol risk assessment for sensitive receptors. 5.4 Know the methods used for bioaerosol abatement (including reducing point source releases). 5.5 Know the consequences of exposure to bioaerosols to staff and visitors. 5.6 Know how to manage the risk of exposure to bioaerosols. 5.7 Know what information should be received in a bioaerosol monitoring report.


Environment Agency (2010) Composting and potential health effects from bioaerosols

Environment Agency (2018) M9 - Environmental monitoring of bioaerosols at regulated facilities


Notes

http://webarchive.nationalarchives.gov.uk/20140328084622/http:/www.environment-agency.gov.uk/static/documents/Research/Composting__bioaerosols.pdf

http://webarchive.nationalarchives.gov.uk/20140328084622/http:/www.environment-agency.gov.uk/static/documents/Research/Composting__bioaerosols.pdf

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/590462/LIT_10645.pdf

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/590462/LIT_10645.pdf





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6. Standards

Learning Outcomes

6.1 Know what is required to ensure that a fully recovered product may be used without being classed as waste. 6.2 Know the characteristics of:

- a sanitisation regime. - a stabilisation regime.

6.3 Know the requirements of a Hazard Analysis Critical Control Point plan for a PAS 100 certified facility. 6.4 Know the maximum contaminant concentrations permitted under PAS 100. 6.5 Know the records required in order to comply with PAS 100 and the Quality Protocol. 6.6 Know under what conditions a compost or compost-like output can be applied to land from a non PAS 100 certified facility. 6.7 Know the storage requirements on land for both compost and compost-like outputs. 6.8 Know the requirements and methods for source separation of feedstocks to meet PAS 100.


Environment Agency (2012) Quality protocol: compost

BSI PAS 100: producing quality compost


Environment Agency (2012) Compost Quality Protocol

DEFRA (2013) Mechanical Biological Treatment of Municipal Solid Waste

Notes

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/297215/geho0812bwpl-e-e.pdf

http://www.wrap.org.uk/content/bsi-pas-100-producing-quality-compost




https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/297215/geho0812bwpl-e-e.pdf

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/221039/pb13890-treatment-solid-waste.pdf


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7. Process Principles

Learning Outcomes

7.1 Know each phase of the aerobic composting process and how to manage it. 7.2 Know the monitoring and control requirements for the aerobic composting process. 7.3 Know the importance of pH during the process and how to manage it. 7.4 Know the nutrient ratios for feedstocks and why they are important for effective treatment. 7.5 Know the required moisture content for each phase of the aerobic composting process and how to manage it. 7.6 Know the effects of temperature on an aerobic composting process and how to manage it. 7.7 Know how to manage feedstocks in relation to: – Optimum size of input materials. – Preventing anaerobic conditions. – Moisture levels. 7.8 Know how to manage the aerobic composting process in accordance with regulatory and process requirements prevent/in the event of: – Plant breakdown. – Equipment breakdown. 7.9 Know what is good practice for using collected leachate within the aerobic composting process.



Notes





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8. Other Issues

Learning Outcomes

8.1 Know methods of preventing and managing fires on an aerobic composting facility. 8.2 Know the requirements for pest and vermin control. 8.3 Know the requirements for litter prevention and control. 8.4 Know the methods for minimising noise emissions. 8.5 Know the requirements for dust prevention and control. 8.6 Know the requirements for control of leachate. 8.7 Know the requirements for the protection of surface water, sewer and groundwater from

substances not controlled by emission limits.



Notes





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9. Health and Safety

Learning Outcomes

9.1 Know what information should be included in a formal accident management plan.



Defra (2018) Develop a management system: environmental permits

Natural Resources Wales (2018) Environmental Management Toolkit

Notes




https://www.gov.uk/guidance/develop-a-management-system-environmental-permits#accident-prevention-and-management-plan

https://naturalresources.wales/permits-and-permissions/environmental-permits/environment-management-system/?lang=en


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Tel: 01604 231950

Email: [email protected]

Web: www.wamitab.org.uk

mailto:[email protected]

http://www.wamitab.org.uk/

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