3. Calculate the SDI for the following samples. Determine if the water needs to be pretreatment before entering an RO system. Test run time, min 2599 10 20 Cumulative volume filtered, mL B 500 700 890 1150 A 315 575 905 1425

3. Calculate the SDI for the following samples. Determine if the water needs to be pretreatment before entering an RO system. Test run time, min 2599 10 20 Cumulative volume filtered, mL B 500 700 890 1150 A 315 575 905 1425

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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Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.

Question

Number 3, B

Recovery rate
F3
2. Using the data below, determine the recovery rate and rejection rate for the following RO system.
Unit
Water
Item
Feed flow
Brine flow
Permeate TDS
Brine TDS
$
Ca²+
HCO3
TDS
pH
F4
%
2
5
10
20
%
3. Calculate the SDI for the following samples. Determine if the water needs to be pretreatment before
entering an RO system.
Test run time, min
m³/d
g/m³
g/m³
m/s
F5
4. Estimate the scaling potential for the RO-treated water samples, by applying LSI.
Constituent
Unit
mg/L as CaCO3
mg/L as CaCO3
mg/L
^
6
A
315
88
Cumulative volume filtered, mL
B
500
700
890
1150
575
905
1425
A
4000
350
65
1500
F6
&
7
ASTOS
5
7
20
6.5
F7
Water
*
86
8
F8
B
10000
9000
175
2850
B
10
12
25
7.8
F9

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