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DEÜ MÜHENDSLK FAKÜLTES

FEN ve MÜHENDSLK DERGS

Cilt: 2 Sayı: 1 sh. 1-12 Ocak 2000

ATIKSU MKTARI VE BO

5

KRLLK YÜKÜNÜN, HAVALANDIRMA

HAVUZU LK YATIRIM VE ENERJ MALYETLERNE OLAN ETKLERNN

NCELENMES

(INVESTIGATION OF EFFECTS OF FLOWRATE AND BOD 5

LOADING ON

INVESTMENT AND ENERGY COSTS OF AERATION TANK)

Mustafa DERMENC*, Ahmet ALTIN*, Süreyya ALTIN*

ÖZET / ABSTRACT

Günümüzde atıksu arıtma tesislerinin tasarımında, atıksu debileri ve kirlilik yükleri genellikle yeterince

inceleme yapılmadan, belli emniyet payları bırakılarak tahmin edilmektedir. Ayrıca bu tasarımlarda, tesisin

edilen atıksu debileri ve kirlilik yüklerinin ve projelendirme parametrelerinin havalandırma havuzu ilk yatırım

ve enerji maliyetlerine olan etkileri aratırılm

ıtır.

Yapılan çalımalar sonucunda; BO5

, debi, F/M ve UAKM miktarındaki deiimlerin inaat maliyetlerini 5 A * B eklinde bir ilikinin mevcut olduu belirlenmitir. Burada verilen A ve B katsayılarının farklı BO 5 , F/M ve UAKM deerlerindeki

sayısal ifadeleri bulunmu ve aralarında Ln(B) = 4.097*ln(A) + (0.281) gibi bir baıntının var olduu

Sonuç olarak; arıtma tesislerinin tasarımında kullanılacak debi, kirlik yükü ve dier tasarım parametrelerinin

seçiminde oldukça titiz çalımaların yapı lması ve gereinden fazla bırakılan emniyet paylarından da mümkün

The wastewater flow rates and BOD5

loading to be used for the design of the wastewater treatment plants

are generally estimated within proper tolerance ranges without sufficient investigation. In addition the values of

some design parameters which differ depending on the type of the plant are selected considering the limit

values given in literature. In this study; the effects of the flow rates and BOD 5 loading estimated wide tolerance

ranges and design parameters on the investment and energy costs of the aeration tanks were investigated.

The studies revealed that the variations in BOD

5, flow rate, F/M ratio and MLVSS effect significantly the

investigation cost and there is a relation between the parameters which can be expressed as COST = (BOD

5 A B. The values of A and B were calculated for different BOD 5 , F/M and MLVSS amounts and relation between

them were determined as Ln(B) = 4.097*ln(A) + (0.281). In addition, equipment coasts of diffused aeration

systems are higher 30% ratio related on pollution load activities. Furthermore; it was observed that diffused

aeration systems energy coasts are 10% cheaper than mechanical aeration systems. It has been concluded that,

the determination of the flow rates, pollution loading and other design parameters for the treatment plant design

should be made sensitively and avoiding from wide tolerance ranges for these parameters will reduce significantly investment and energy costs of the treatment plant.

ANAHTAR KELMELER / KEY WORDS

Havalandırma havuzu maliyeti, Debi-maliyet ilikisi, BO 5 -maliyet ilikisi, BO5 kirlilik yükü

Aeration tank cost, Flow rate-cost relation, BOD

5 -cost relation, BOD 5 loadingquotesdbs_dbs27.pdfusesText_33

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