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  • Dec 22, 2014
  • Updated: 6:18pm

Anaerobic Digestion

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Not all biofuels are good for the planet

Cathay Pacific is planning to use biofuels to meet strict carbon emission requirements. This is great news, because if airliners use renewable energy, it will benefit the environment.

Wednesday, 7 December, 2011, 12:00am

Inspectors say water supply is clean

Hong Kong's water supply is clean, the Water Supplies Department said after a delegation visited Guangdong. The Dongjiang, or East River's biochemical oxygen demand, phosphorus, manganese and nitrate levels - indicating pollution from household sewage - have been low since 2003. Last year's drought did not affect the supply, it said.

25 Nov 2010 - 12:00am

More toxic sewage spills from Zijin plant

At least two more toxic leaks occurred at Zijin Company's Zijinshan Copper Mine in Shanghang town, Fujian province , at the weekend, villagers near the mine said.

19 Jul 2010 - 12:00am

Yes, even recession has its uses

Sometimes recessions have a positive impact, at least from the point of view of environmentalists.

The most obvious positive in Hong Kong is air quality, with some seeing a direct connection between blue skies and our business performance. It is a fact that when the orders received by factories in the Pearl Delta region drop, the quality of our air and visibility improve.

1 Dec 2009 - 12:00am

Landfill gas plan set for approval

A HK$500 million landfill gas conversion proposal by Towngas is poised to become Hong Kong's first clean development project under the international climate pact to cut greenhouse gases, and bring a windfall for the gas supplier.

11 Oct 2009 - 12:00am

Once upon a time, in a galaxy far, far away ...

My goodness. Your streets are all clean and the air even near the roads is fresh. How do you do that? Engines burn fuel after all - where are all the fumes?

30 Jun 2009 - 12:00am

Monitor sites well, experts urge

The risk of revitalising landfill sites for public use is low, but will require real-time monitoring, experts say.

15 Jun 2009 - 12:00am

Even world's best technology cannot by itself prevent pit gas explosions, experts say

The Tunlan colliery had some of the world's most sophisticated technology and expensive equipment to prevent gas explosions, but hardware alone is not enough to save lives, say some mainland mine-safety experts.

25 Feb 2009 - 12:00am

Ten Technologies to Save the Planet

Ten Technologies to Save the Planet

by Chris Goodall

Profile Books, HK$135

11 Jan 2009 - 12:00am

Biogas from sewage to save HK$15m a year

Potential greenhouse pollutant helps power treatment plants

Up to HK$15 million would be saved annually under a plan by the Drainage Services Department to use sewage-generated biogas for power generation, officials said yesterday.

15 Mar 2008 - 12:00am

Big rewards for environmental engineers in waste game

Hong Kong's throwaway culture that annually generates millions of tonnes of waste, much of which ends up in landfill sites, is often an issue with environmentalists but has also produced innovative waste management solutions developed and maintained by environmental engineers.

23 Feb 2008 - 12:00am

HK's landfill sites provide a source of renewable energy

Unless it happens to be the favourite children's character Stig of the Dump, most people think nothing useful emerges from rubbish dumps or landfill sites, which are the end-point of much of the excesses of a wasteful economy.

However, The Hong Kong and China Gas Company, better known as Towngas, views landfill sites as a useful source of renewable, clean energy.

24 Nov 2007 - 12:00am

Future is bright

The cramped and smoky kitchens of backwater village houses in Shaanxi province are a far cry from well-equipped Hong Kong homes. But their damp, rustic quarters are now better off thanks to a pioneering biofuel scheme that, with Hong Kong backing, is helping to introduce modern energy supply to hundreds of homes and the women who work in them.

7 Sep 2007 - 12:00am

Advance sewage fees called a 'blank cheque'

The government came under fire yesterday for proposing to collect advance sewage charges before completion of multibillion-dollar treatment works to clean up the harbour - described by one academic as an 'unwarranted blank cheque'.

28 Apr 2007 - 12:00am

Institute may have answer to Hong Kong's environmental problems

WITH HONG KONG facing many environmental problems such as diminishing landfill space, worsening air pollution and dependence on outside water supply, the Israel Export & International Co-operation Institute (IEICI) might be just what the territory needs.

3 May 2006 - 12:00am

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