The Science Of ...

The Science of Waste-to-Energy: Producing 5% of Cape Town's gas

This week Bruce Whitfield looks at the Science of Waste-to-Energy with Egmont Ottermann CEO at New Horizons Energy.

Their plant in Cape Town was designed to be a true landfill alternative. They turn 500 tons of waste a day and turn it into bio-gas.

Cape Town produces 6-7000 tons of waste a day and the plant processes 10% of that total.

They work with Waste-Mart who collect the refuse and waste throughout Cape Town.

We take out all the stuff that does not go into a processor, like sofas and engine blocks...mattresses and computers. We have to separate the recyclables from the non-recyclables. That happens in a mechanical process.

Egmont Ottermann CEO at New Horizons Energy

The recyclables then go into a traditional municipal refuse facility. They get sent on to recycling companies.

The non-recyclables get put into a press.

I want you to imagine a garlic press. But not the size of a garlic press in your kitchen. This is slightly bigger and works at 280 bar ( 280 times the atmosphere) which is a lot of pressure.

Egmont Ottermann CEO at New Horizons Energy.

This press squeezes out all the organics that we can extract from this solid waste. It then goes into anaerobic digesters...it's a thick nice gooey juice. And the bugs love this juice. we produce a biogas which is a mixture of CO2 and methane. We split that and we produce liquefied CO2 at a food grade quality and produce biomethane which is compressed and used as a liquid petroleum gas - an LPG alternative.

Egmont Ottermann CEO at New Horizons Energy.

They produce 5% of Cape Town's gas requirement and they produce a good fertiliser.

Listen to the interview with Egmont Ottermann of New Horizons Energy below:


Recommended

by NEWSROOM AI

702 welcomes all comments that are constructive, contribute to discussions in a meaningful manner and take stories forward.

However, we will NOT condone the following:

  • Racism (including offensive comments based on ethnicity and nationality)
  • Sexism
  • Homophobia
  • Religious intolerance
  • Cyber bullying
  • Hate speech
  • Derogatory language
  • Comments inciting violence.

We ask that your comments remain relevant to the articles they appear on and do not include general banter or conversation as this dilutes the effectiveness of the comments section.

We strive to make the 702 community a safe and welcoming space for all.

702 reserves the right to: 1) remove any comments that do not follow the above guidelines; and, 2) ban users who repeatedly infringe the rules.

Should you find any comments upsetting or offensive you can also flag them and we will assess it against our guidelines.

702 is constantly reviewing its comments policy in order to create an environment conducive to constructive conversations.

Read More
Land reform regressed in 24 years under ANC – researchers (University of W Cape)

Land reform regressed in 24 years under ANC – researchers (University of W Cape)

Bruce Whitfield interviews Prof Ruth Hall (Institute for Poverty, Land and Agrarian Studies - University of the Western Cape).

How the 'creative economy' mines ideas, and turns them into money

How the 'creative economy' mines ideas, and turns them into money

Bruce Whitfield interviews The Loerie Awards CEO Andrew Human about the science of creativity and the creative economy.

The future of mining, South Africa’s lifeblood (and employer of 500 000 people)

The future of mining, South Africa’s lifeblood (and employer of 500 000 people)

The Money Show’s Bruce Whitfield interviews Jan-Adriaan du Plessis, Associate Director of Strategy and Operations at Deloitte.

How playing board games (we’re not kidding!) can make your business victorious

How playing board games (we’re not kidding!) can make your business victorious

The Money Show’s Bruce Whitfield interviews board game junky and famed speaker Richard Mulholland.

Emotional intelligence – not IQ – will keep your job safe from AI... for now

Emotional intelligence – not IQ – will keep your job safe from AI... for now

EQ will soon be one among the most sought-after attributes required of jobseekers. Refilwe Moloto interviews Joni Peddie.

VAT rate goes up to 15% on Sunday (yet remains among the world's lowest)

VAT rate goes up to 15% on Sunday (yet remains among the world's lowest)

The Money Show’s Bruce Whitfield interviews Charles de Wet, partner at PwC.

Popular articles
Former Nedbank Chair Reuel Khoza opens up about money, farming and music

Former Nedbank Chair Reuel Khoza opens up about money, farming and music

The Money Show’s Bruce Whitfield interviews Khoza about his attitude and beliefs about money (plus successes and failures, etc.)

Everything you know about success is (mostly) wrong

Everything you know about success is (mostly) wrong

Allon Raiz on “Barking up the Wrong Tree: The Surprising Science behind Why Everything You Know about Success Is (Mostly) Wrong”.

[LISTEN] Father shares how he shot the man who raped his daughter

[LISTEN] Father shares how he shot the man who raped his daughter

Johannesburg father, Chris says he had just come back from work when he walked in on an employee raping his 17 year old daughter.

Bokke can become a world-beating squad - Ashwin Willemse

Bokke can become a world-beating squad - Ashwin Willemse

The former Springbok and current rugby commentator gives his perspective on Saturday's game against the All Blacks.

UPDATE: Chilling WhatsApp from Marli van Breda's ex-boyfriend read out in court

UPDATE: Chilling WhatsApp from Marli van Breda's ex-boyfriend read out in court

Marli van Breda's ex took the stand in the trial of triple murder accused Henri van Breda.

So what exactly is radical economic transformation?

So what exactly is radical economic transformation?

Wits associate professor of economics Christopher Malikane speaks to Azania Mosaka about the term that is being bandied about.

Competition Commission investigates five companies to stamp out price-fixing

Competition Commission investigates five companies to stamp out price-fixing

Commission says investigation into food and agro processing companies is important because of high levels of inequality in SA.

Who is Advocate Tembeka Ngcukaitobi?

Who is Advocate Tembeka Ngcukaitobi?

The EFF lawyer stole the show during the state capture report court battle.

3 easy questions could bag you R2000!

3 easy questions could bag you R2000!

WIN R2000! But only if you can prove you're a whiz of the MTN Biz Quiz by answering the following three questions...

Blesserfinder: Matching you with a sugar daddy near you

Blesserfinder: Matching you with a sugar daddy near you

Is social trend Blesserfinder, where girls are allegedly matching up with rich 'benefactors' in exchange for sex, a real thing?