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Sustainability Features

New showerhead uses presence-sensing to conserve water

A new shower designed by a small start-up company in California lets users save water by sensing their presence.

Read more: New showerhead uses presence-sensing to conserve water

How Loowatt is rethinking the toilet

By Kelly-Ann Prinsloo

Loowatt is an innovative toilet system that makes human waste into a business opportunity by turning it into biogas and compost. Waste isn’t flushed away, rather it is safely and hygienically sealed in a bio-degradable film and stored in a cartridge. These are then emptied into a digester that harvests the gas. At the end of the microbial process, the digestate is delivered to a compost factory where it is mixed with straw and processed by wormery into vermicompost.

Read more: How Loowatt is rethinking the toilet

Water scarcity threatens growth and stability, study warns

Worsening water scarcity fuelled by climate change could cost regions such as the Middle East and northern Africa up to 6% of their gross domestic product in less than 35 years, the World Bank has warned.

Read more: Water scarcity threatens growth and stability, study warns

Energy-efficiency for the Midrand Graduate Institute

State-of-the-art European technology supplied by SEG Solar Energy (Pty) Ltd

By Kelly-Ann Prinsloo

When a new housing development at the Midrand Graduate Institute needed an energy-efficient solar water heating system, Sonnenkraft rose to the challenge. Werner Sebastian, chief executive officer of Sonnenkraft SA and SEG Solar Energy, has successfully designed and installed an 18 000ℓ solar water heating system for new student housing at the Midrand Graduate Institute’s Whitehouse complex.

Read more: Energy-efficiency for the Midrand Graduate Institute

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