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SALUTAR anaerobic filter

Input data

Type of contributor

Number of contributors

Temperature

Output data

Contribution of sewage

Hydraulic detention time

Filter bed volume

Description

Given the number and type of contributors and the temperature of the effluent to be treated, calculates the volume of the filtering medium.

Anaerobic filterAnaerobic filter

Table 1 - Daily contribution of waste and organic load by type of building and occupants

Building
Unit
Sewage contribution L/d
Organic load contribution L/d gBOD5.20gBOD_{5.20}/d
Permanent occupants
Residence
High standard
Person
160
50
Average standard
Person
130
45
Low standard
Person
100
40
Hotel (except laundry and kitchen)
Person
100
30
Temporary accommodation
Person
80
30
Temporary occupants
Factory in general
Person
70
25
Office
Person
50
25
Public or commercial building
Person
50
25
Schools (day schools) and long-term places
Person
50
20
Bars
Person
6
6
Restaurants and similar
Person
25
25
Cinemas, theaters and short-stay places
Person
2
1
Public restrooms
Sanitary basin
480
120

Table 2 - Sewage hydraulic detention time (t), by flow range and sewage temperature (in days)

Flow (L/day)
Average temperature of the coldest month
Below 15°C
Between 15°C and 25°C
Greater than 25°C
Up to 1,500 1.17
1
0.92
From 1,501 to 3,000
1.08
0.92
0.83
From 3,001 to 4,500
1
0.83
0.75
From 4,501 to 6,000
0.92
0.75
0.67
From 6,001 to 7,500
0.83
0.67
0.58
From 7,501 to 9,000
0.75
0.58
0.5
Above 9,000
0.75
0.5
0.5

Talk to an engineer

Get in touch with Salutar:

Site: https://www.salutar.eco.br/

Phone: +55 (93) 99161-7554

E-mail: contato@salutar.eco.br

References

  • ABNT. NBR 13969 Tanques sépticos - Unidades de tratamento complementar e disposição final dos efluentes líquidos - Projeto, construção e operação - Rio de Janeiro, ABNT, SET 1997