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Aardrykskunde

Graad 4

Hulpbronne en dienste in ‘n nedersetting

Module 19

Vullisverwydering en herwinning

Vullisverwydering

Die vullis in jou omgewing sluit nie net vaste afvalstowwe in jul vuilgoeddromme in nie, maar ook riool. Rioolwater bevat gevaarlike kieme en dit kan nie in riviere, mere of die see beland sonder dat dit gesuiwer is nie. Dit sal ‘n baie nadelige uitwerking op die dier- en plantlewe hê. Daarom word rioolwater by waterwerke gesuiwer.

Vaste vullis kan ‘n groot probleem raak as dit nie op ‘n gereelde basis verwyder word nie.

Hoe gereeld kom die vulliswa by jou huis verby?

Waarheen word hierdie vaste afval geneem en wat word daarmee gedoen?

Aktiwiteit 1

Om uit te vind hoe vaste afval verwerk word [lu 3.1]

Kyk of julle met voorstelle kan kom hoe om suksesvol van vaste afval ontslae te raak sonder om die omgewing te besoedel. Onthou, die afval sluit plastiek (wat nie verrot nie) in.

Hoewel die meeste vaste afval na vullishope geneem word waar dit verbrand of begrawe word, is dit nie altyd die beste uitweg nie.

Herwinning

Aktiwiteit 2

Om na aanleiding van die sketse die voorbeelde van vullis in die meegaande tabel te sorteer [lu 1.2]

Sorteer die artikels hierbo onder die volgende hofies.

Herwinbaar Nie-herwinbaar

Kan jy dalk nou met ‘n voorstel kom oor hoe vaste afval in ons huise hanteer behoort te word?

Interessante feite oor die omvang van die vullisverwyderingsdienste van stad Kaapstad.

Die Stad Kaapstad se taak ten opsigte van vullisverwydering .

Die Stad Kaapstad bestuur die gebied van Bloubergstrand af tot by Gordonsbaai . Die 3,2 miljoen inwoners tesame met die fabrieke en sakeondernemings se afval word van 660 000 dienspunte na ses groot stortingsterreine geneem – 1,5 miljoen ton vullis jaarliks ! Dié hoeveelheid groei jaarliks met 6 % . Die stedelike bevolking het egter die afgelope paar jaar met 3,5 % gegroei , wat beteken dat die mense jaarliks meer vullis per huishouding oplewer .

Navorsing het getoon dat gegoede mense weekliks 25 kg vullis per huis genereer, arm mense 15 kg per huis, en die heel armstes in plakkersgemeenskappe 8 kg per huis.

In Suid-Afrika word ongelukkig baie min huisafval herwin . Huishoudings in Europa en die VSA genereer meer huisafval per gesin, maar herwin gelukkig ook baie daarvan.

Onthou: hoe meer herwin word, hoe minder vullis is daar waarvan ontslae geraak moet word.

Assessering

LEERUITKOMS 1: AARDRYKSKUNDIGE ONDERSOEK

Die leerder is in staat om ondersoekvaardighede te gebruik om aardrykskundige en omgewingsbegrippe en -prosesse te ondersoek.

Assesseringstandaard

Dis duidelik wanneer die leerder

1.2 inligting uit bronne onder hofies organiseer.

LEERUITKOMS 3: VERKENNING VAN VRAAGSTUKKE

Die leerder is in staat om ingeligte besluite oor sosiale en omgewingsvraagstukke en –probleme te neem.

Assesseringstandaard

Dis duidelik wanneer die leerder

3.1 vraagstukke kan identifiseer wat met hulpbronne en dienste in spesifieke kontekste gepaardgaan.

Memorandum

V ullisverwydering

Vullisgate (hersirkulering – ontbinding)

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
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Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
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LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
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Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
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Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
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Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Aardrykskunde graad 4. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11083/1.2
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