OXIDATION POND presentation

7/29/2019 OXIDATION POND presentation

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GROUP MEMBERS MATRIX NO.

1) SITI NORHAFIZAH BINTI NORDIN06DKA09F2055

2) TUAN NOOR AIN ZULAIKA BINTI TUAN REZALI06DKA09F2056

3) INTAN SAFINA BINTI ABU BAKAR 06DKA09F2092

4) NADIATUL AKMA BINTI AHMAT06DKA09F2072

5) ARINA MAHIRAH BINTI ZULKIFLI 06DKA09F2048


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1. Terdapat banyak inovatif teknologi biologiuntuk rawatan air sisa dan enap cemar.

2. Empat teknologi seperti yang kini telahmenjadi diterima secara meluas di seluruhdunia: -

penstabilan kolam

Tumbuhan & tanah lembap mengarang

Sistem biologi penyingkiran Nutrien(BNR)


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1. sisa pembuangan manusia memerlukan pengurusan

yang lebih teratur.

2. Lebih banyak pembangunan rawatan kumbahan telah

dijalankan demi meningkatkan tahap kebolehpercayaan

dan kecekapan sesuatu sistem rawatan kumbahan.

3. Kaedah-kaedah rawatan kumbahan boleh

diklasifikasikan kepada operasi-operasi unit fizikal,proses-proses unit kimia dan proses-proses unit biologi.


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Also known as stabilization ponds or lagoons.

A popular sewage treatment method for small communities because of their

low construction and operating costs.

Represent 12 per cent (500 numbers) of all sewage treatment plants.

New oxidation ponds can treat sewage to Standard B effluent level butrequire maintenance and periodic desludging in order to maintain this

standard.

Comprise one or more shallow ponds in a series.

The natural processes of algal and bacteria growth exist in a mutually

dependent relationship.


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They are used for simple secondary treatment of sewage effluents.

Also tend to fill, due to the settling of the bacterial and algal cellsformed during the decomposition of the sewage.

Tend to be inefficient and require large holding capacities and longretention times.

The degradation is relatively slow and the effluents containing theoxidized products need to be periodically removed from the ponds.

Oxygen is supplied from natural surface aeration and by algalphotosynthesis.

Bacteria present in the wastewater use the oxygen to feed on organicmaterial, breaking it down into nutrients and carbon dioxide.

These are in turn used by the algae. Other microbes in the pond such

as protozoa remove additional organic and nutrients to polish theeffluent.


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Biological reaction


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There are normally at least two ponds constructed.

The first pond reduces the organic material using aerobic digestionwhile the second pond polishes the effluent and reduces the

pathogens present in sewage.

Sewage enters a large pond after passing through a settling and

screening chamber.

After retention for several days, the flow is often passed into asecond pond for further treatment before it is discharged into a drain.

Bacteria already present in sewage acts to break down organic matter

using oxygen from the surface of the pond.

Oxidation ponds need to be desludged periodically in order to work

effectively.


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Papan tanda Kolam PengoksidaanPoliteknik Port Dickson

Kolam Pengoksidaan


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Manhole Penapisan ampaiansebelum air sisa disalirkanke Kolam Pengoksidaan

Terdapat jaring / penapisan dimanhole penapisan, untuk menapis

ampaian


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Paddel Wheel Aeractor digunakanuntuk menghidupkan bacteria didalam Kolam Pengoksidaan

Jangka masa operasi PaddelWheel Aeractor akan dikawalmenggunakan Suis Box.


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Keadaan Kolam Pengoksidaansebelum suis Paddel Wheel

Aeractor dihidupkan

Keadaan Kolam Pengoksidaansemasa suis Paddel Wheel Aeractordihidupkan


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Air Sisa dari kolam pengoksidaanpertama, akan disalirkan kepadakolam pengoksidaan keduamelalui saliran ini.

Keadaan Kolam pengoksidaan Keduasebelum air sisa disalurkan keluar ke parit .

Diselanggarakan oleh JPP(JbtnPerbandaraan Pembentungan)


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Kesimpulan

untuk memastikanpencemaran bau

dan air tidakberlaku, sebelum

air sisa disalurkanke parit

Ujian airBiochemical

Oxygen Demand(BOD)

Ujian ChemicalOxygen Demand

(COD)


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Ujian BOD dibuat untuk mengenal pasti jumlah oksigenterlarut yang digunakan oleh bakteria semasa proses

pengoksidaan organik. Sekiranya kandungan BOD

adalah tinggi ia bermaksud air ini adalah tercemar maka

lebih banyak oksigen terlarut perlu dimasukkan semasa

proses rawatan kumbahan dijalankan.

Ujian COD dilakukan adalah untuk mengenalpasti

jumlah perbezaan oksigen dan bahan organik yang

terdapat di dalam air kumbahan yang memerlukan

bahan kimia untuk pengoksidaan. Dalam ujian ini, nilai

tersebut akan diketahui. Sekiranya keputusan yang

menunjukan nilai COD yang tinggi bermaksud air

kumbahan ini tercemar. Nilai tinggi COD bermaksud

terdapat bahan tidak organik yang banyak.

OXIDATION POND presentation

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