Calculadora de volumen de aireación Juntai

The aeration system is a crucial component in water treatment processes, used to introduce air or oxygen into the water body to support the growth of beneficial microorganisms and facilitate the degradation of pollutants. The aeration process provides oxygen to meet the microbial oxygen demand, enabling efficient breakdown of organic matter. The Aeration Volume Calculator Is A Highly Valuable Tool That Aids Engineers And Water Treatment Professionals In Determining The Required Aeration Volume. This calculator takes into account factors such as water volume, pollutant concentrations, desired oxygen transfer efficiency, and the type of aeration equipment used. Accurate aeration volume calculations help optimize the design of aeration systems, leading to improved water treatment efficiency while reducing energy consumption and operational costs. Such calculators play a vital role in water treatment engineering, contributing significantly to environmental preservation and the provision of clean water resources.

The Following Is Juntai For You To Sort Out The Correct Way To Calculate The Amount Of Aeration：

• Blue Block Is The Design Datameter : Be Filled In

• Brown: Calculate Process Data

• Red : Last Result For Your Process
   

1.Aerobic Tank Volume Calculation
Calculation Formula
Design parameters:
Qmax	150	Daily sewage design flow, m3/d
So	400	Sewage untreated for five days - (BOD5 concentration), mg/l
Se	20	Five days after treatment - (BOD5 concentration), mg/l
BODSS	0.12	Sludge load, kg-BOD/kg·MLSS/day
MLSS	4000	Sludge concentration, mg/l
Result	118.75	M3

2.Denitrification Cabinet Volume Calculation
Calculation Formula
Design parameters:
NIKN	250	Concentration of ammonia nitrogen in treated effluent, mg/l
NETN	30	Concentration of ammonia nitrogen in treated effluent, mg/l
MDNL	0.5	Sludge denitrification load, kg-NH3-N/kg·MLSS/day
MLSS	3000	Sludge concentration, mg/l
Result	22	M3

3.Aeration Calculation
Calculation Formula
Design parameters:
Ro2-	172.35	Design sewage oxygen demand, kgO2/d
So-	400	Five-day biochemical oxygen demand of influent water, mg/L
Se-	20	Five-day biochemical oxygen demand of effluent, mg/L
△Xv-	11.08	Amount of microorganisms discharged from the oxidation tank to the system, kg/d
Nk	275	Total Kjeldahl nitrogen in influent, mg/L
Nke-	45	Total Kjeldahl nitrogen in effluent, mg/L
Nt-	275	Total nitrogen in influent, mg/L
Noe-	21	Amount of nitrate nitrogen in effluent, mg/L
a-	1.47	Carbon equivalent, when the carbonaceous material is measured in terms of five-day biochemical oxygen demand, take 1.47
b-	4.57	Constant, oxygen demand for oxidizing each kilogram of ammonia nitrogen, kgO2/kgN, take 4.57.
c-	1.42	Constant, oxygen content of bacterial cells, taken as 1.42
d-	0.08	Constant, sludge auto-oxidation rate, taken as 0.08
N'-	2.8	Average concentration of volatile suspended solids in the mixture (g vss/L) at 70% of the sludge volume
θ-	30	Sludge age, 30d
Result	172.3518987	kgO2/d

4.Absolute Pressure Calculation
Calculation Formula
Design parameters:
Pb-	133040	Absolute pressure at which the aeration device is located, Pa
H-	4.3	Aeration diffuser gas port at the water depth, m (water depth minus the aeration disc installation height, according to the depth of the tank accounting)
P-	90900	Atmospheric pressure, Pa (actual atmospheric pressure at location)
Result	133040	Pa

5.Calculation Of Oxygen Content In Per Cent
Calculation Formula
Design parameters:
Ot-	16.62%	Percentage of oxygen in the gas escaping from the aeration basin, dimensionless
EA-	25%	Transfer coefficient of diffusion device, % oxygen utilisation (value selected with reference to technical parameters provided by SSI manufacturer)
Result	0.166226913

6. Calculation Of Average Dissolved Value
Calculation Formula
Design parameters:
Csm	8.82	T℃、Average dissolved value of clear water from the depth of the water under which the actual aeration device is located to the surface of the pool, mg/1TC,
Csw	8.38	T℃、Saturated dissolved oxygen on the surface of clear water at actual calculated pressure, mg/1(CS(20)＝9.17mg/L，CS(25)＝8.38mg/L)
T-	25	℃
Result	8.818924806	mg/L

7. Calculation Of Oxygen Demand Correction Factor
Calculation Formula
Design parameters:
KO-	1.715	Oxygen demand correction factor
Co-	2	Remaining dissolved oxygen concentration of mixed liquid, mg/L
Cs	9.17	Saturated dissolved oxygen mass concentration in clear water under standard condition, mg/L
α-	0.8	Transfer efficiency resistance coefficient, the influence of the nature of wastewater on dissolved oxygen, correction factor K1a
		Raw domestic sewagea value of about 0.4~0.5
		Industrial wastewatera value varies greatly 0.8~0.85
		The effect of salts in wastewater on dissolved oxygen, saturated oxygen resistance factor
β-	0.9	β value is generally between 0.9~0.97
Result	1.71

8. (Calculated On 24h Basis) Aeration Basin Air Supply Volume Aeration Basin Air Supply Volume Calculation
Calculation Formula
Design parameters:
Ro	295.52	kgO2/d
Gs	12.31	kgO2/h Aeration basin gas supply (24h)
Gs	175.91	m3/h
Gs-	2.93	m3/min
Calculation Formula
Design parameters:
Gs max	3.66	m3/min
Gs max	219.88	m3/h