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Designed Monomers and Polymers Volume 19, 2016 - Issue 1
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Articles

Processing of biscuit industrial effluent using thin film composite nanofiltration membranes

B. Venkata SwamyDepartment of Biotechnology, B. V. Raju Institute of Technology, Narsapur, India
,
M. MadhumalaMembrane Separations Group, Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad, India
,
R. S. PrakashamBEEC Division, Indian Institute of Chemical Technology, Hyderabad, India
&
S. SridharMembrane Separations Group, Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad, IndiaCorrespondence[email protected]
Pages 47-55 | Received 01 Jun 2015, Accepted 21 Aug 2015, Published online: 28 Sep 2015

Figures & data

Table 1. Characteristics of feed permeate and reject streams of biscuit industrial effluent treated by NF.

Figure 1. Structure of TFC polyamide prepared by interfacial polymerization of PIP with TMC.

Figure 1. Structure of TFC polyamide prepared by interfacial polymerization of PIP with TMC.

Figure 2. Process flow diagram for preparation of NF membrane.

Figure 2. Process flow diagram for preparation of NF membrane.

Figure 3. Process flow diagram of NF system.

Figure 3. Process flow diagram of NF system.

Figure 4. FTIR of NF composite membrane.

Figure 4. FTIR of NF composite membrane.

Figure 5. XRD spectra of composite NF membrane.

Figure 5. XRD spectra of composite NF membrane.

Figure 6. TGA curve of composite NF membrane.

Figure 6. TGA curve of composite NF membrane.

Figure 7. SEM images of composite NF membrane (a) surface and (b) cross section.

Figure 7. SEM images of composite NF membrane (a) surface and (b) cross section.

Figure 8. Effect of pressure on flux and % rejection of composite NF membrane.

Figure 8. Effect of pressure on flux and % rejection of composite NF membrane.

Figure 9. Effect of time on flux and % rejection of composite NF membrane at a constant feed pressure of 21 kg/cm2.

Figure 9. Effect of time on flux and % rejection of composite NF membrane at a constant feed pressure of 21 kg/cm2.

Figure 10. Effect of feed concentration on flux and % rejection of composite NF membrane at 21 kg/cm2.

Figure 10. Effect of feed concentration on flux and % rejection of composite NF membrane at 21 kg/cm2.

Table 2. Capital investment for commercial NF system capable of processing 1 m3/h of biscuit industrial effluent.

Table 3. Operation and maintenance cost of NF system for processing 1 m3/h biscuit industrial effluent.

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