Egg washing operation

0

Courtesy of Walden, Inc.

Egg washing produces a discharge with very high BOD and Nitrogen levels. Many facilities are not on public sewers and therefore require onsite treatment prior to discharge. Protection of groundwater is the primary concern. A secondary consideration is the life span of the disposal field.

Walden has provided treatment plants for egg washing operations in the Northeast where winter temperatures can dip below zero during the winter. Due to the buried, closed tank design and the ability of the operator to adjust the treatment cycle cold weather has a minimal impact on operations with the tank contents rarely going below 18oC. Flow can vary on a daily basis by up to 200%. Another issue is the variability of the age of the flocks in various barns. As they age shells become thinner and breakage increases resulting in increased waste strength.

PARAMETER

INFLUENT

EFFLUENT

INFLUENT

EFFLUENT

 



BOD (mg/L)

1700

5.0

1800

7.0

TSS (mg/L)

470

15

390

11

Nitrate-N (mg/L)

<0.5

<0.5

<0.5

6.7

Nitrite-N (mg/L)

0.31

2.4

<0.05

0.35

Ammonia-N (mg/L)

140

<0.5

180

0.58

TKN (mg/L)

190

3.5

220

2.9

Alkalinity (mg/L)

1300

840

1700

1500

Phosphorus (mg/L)

44

8.5

45

21

pH

7.63

8.4

7.26

8.64

Conductivity (uS)

3700

2400

4600

3800

Temperature (Celsius)

28.8

21.1

30.8

30.3

Customer comments

No comments were found for Egg washing operation. Be the first to comment!