5. A pilot column breakthrough test has been performed with a wastewater that has a trichloroethylene (TCE) concentration of 400 mg/L as TOC (total organic carbon). Pertinent design data are ID = 0.095 m, length = 1.04 m, mass of carbon = 2.98 kg, liquid flow rate = 17.42 L/hr, unit liquid flow rate = 0.679 L/s-m², and packed carbon density = 401 g/L. The breakthrough data are given in Table 1. Determine: a. The liquid flow rate in bed volumes per hour and the volume of liquid treated per unit mass of carbon using an allowable breakthrough concentration of 35 mg/L of TOC. in kg/kg. b. The kinetic constants ki in L/s-kg and qo Table 1. Throughput Volume Effluent TOC (mg/L) (L) 15 69 159 273 379 681 965 1105 1215 1287 1408 1548 12 16 24 16 16 20 28 32 103 211 350 400

5. A pilot column breakthrough test has been performed with a wastewater that has a trichloroethylene (TCE) concentration of 400 mg/L as TOC (total organic carbon). Pertinent design data are ID = 0.095 m, length = 1.04 m, mass of carbon = 2.98 kg, liquid flow rate = 17.42 L/hr, unit liquid flow rate = 0.679 L/s-m², and packed carbon density = 401 g/L. The breakthrough data are given in Table 1. Determine: a. The liquid flow rate in bed volumes per hour and the volume of liquid treated per unit mass of carbon using an allowable breakthrough concentration of 35 mg/L of TOC. in kg/kg. b. The kinetic constants ki in L/s-kg and qo Table 1. Throughput Volume Effluent TOC (mg/L) (L) 15 69 159 273 379 681 965 1105 1215 1287 1408 1548 12 16 24 16 16 20 28 32 103 211 350 400

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

5. A pilot column breakthrough test has been performed with a wastewater that has a trichloroethylene
(TCE) concentration of 400 mg/L as TOC (total organic carbon). Pertinent design data are ID =
0.095 m, length = 1.04 m, mass of carbon = 2.98 kg, liquid flow rate = 17.42 L/hr, unit liquid flow
rate = 0.679 L/s-m², and packed carbon density = 401 g/L. The breakthrough data are given in Table
1. Determine:
a. The liquid flow rate in bed volumes per hour and the volume of liquid treated per unit mass of
carbon using an allowable breakthrough concentration of 35 mg/L of TOC.
b. The kinetic constants ki in L/s-kg and qo in kg/kg.
Table 1.
Throughput Volume
(L)
15
69
159
273
379
681
965
1105
1215
1287
1408
1548
Effluent TOC
(mg/L)
12
16
24
16
16
20
28
32
103
211
350
400

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