DEMM Engineering & Manufacturing - - CONTENTS - Steve Hart Edi­tor, Edi­tor@DEMM.co.nz

In this edi­tion we take a look at what seems to be a pi­o­neer­ing so­lu­tion for the treat­ment of waste in the district of Sel­wyn.

Rather than dump tonnes of sludge (that in­cludes up to 80 per­cent wa­ter) into a land­fill, the coun­cil is now us­ing a high-tech green­house to dry sludge to just 10 per­cent wa­ter – all thanks to the power of the sun. That makes the sludge lighter (and so cheaper) to trans­port to a land­fill.

The firm that rec­om­mended the sys­tem is MWH, and Rainer Hoff­man – its chief process engi­neer – says the sys­tem could be used at nu­mer­ous waster wa­ter treat­ment plants across the coun­try.

Right now though, this ‘so­lar drier’ is the first in the coun­try. But as Rainer says, the Ger­man de­signed sys­tem is used right across Europe and in Aus­tralia.

As you may know, I like to keep an eye on de­vel­op­ments in 3D tech­nol­ogy. It is al­ready dis­rupt­ing es­tab­lished busi­nesses around the world, and as 3D print­ing ma­chines be­come faster and more so­phis­ti­cated we will soon be able to print all man­ner of ob­jects in plas­tic or metal in our of­fices and fac­to­ries.

But I was sur­prised to see that one firm has de­signed a 3D print­ing ma­chine that uses stan­dard A4 pa­per as its raw ma­te­rial.

On the main­te­nance front, we re­port in this edi­tion how one firm de­cided to send its man­agers back to school – so they could learn about the ma­chines it uses on the shop floor.

The idea is al­ready pay­ing div­i­dends for the firm as se­nior staff bet­ter un­der­stand how the ma­chines they rely on ac­tu­ally work, and what main­tain­ing them in­volves. It’s the per­fect ex­am­ple of a bot­tom up – top down main­te­nance regime. Read all about it on page 27.

As al­ways, your feed­back and story ideas are wel­come.

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