CH. 5 Environmental Protection
88
5.3.2
Usage of Raw Materials
In terms of choice of building materials, CTCI considers
durability, maintainability, VOCs, hazardous substances,
radiation, and life cycle. For instance, we have adopted
comprehensive use of PVDF coating in coated steel roofs
and walls to lower maintenance requirement for coastal plant
structures. To effectively minimize the leakage of VOCs, we
use low-emission valves in our designs, upgrading from 1,000
ppm emission valves to 100 ppm, thus lowering impact on
the staff and environment during the operation of a plant. For
green building designs, we largely use non-solvent paint and
other low-effusion green materials. For dry walls, we have
comprehensively adopted asbestos-free materials. In the
electrical engineering planning for the construction buildings,
we added PVC-coating in the metallic system-connecting
rod within the reinforced concrete to prevent corrosion, as
well as to prevent environmental pollution and to enhance
Usage of raw materials
Region
Raw material
Unit
Annual performance
Goal
2013
2014
2015
2015 Achieved
2016
Headquarters building
Paper
kg
107,958
98,644
65,810
103,301
O
82,227
Construction sites
Paper (Note 1)
kg
9,930
9,887
687,437
-
- 348,662
Construction sites
Steel pipe (Note 2)
tons
12,329
9,173
16,499
-
- 3,960,330
Construction sites
Recycled cement
(cinder) (Note 3)
tons
5,594
14,460
5,451
-
-
-
Construction sites
Recycled cement (slag
powder) (Note 3)
tons
5,594
14,460
6,290
-
-
-
Note 1: Only domestic data were available up to 2014. Data since 2015 include domestic and overseas amounts, hence the significant increase.
Note 2: Including Taiwan, Asia-Pacific, and Middle-East regions; Mainland China has been included since 2014.
Note 3: Accounting for 10% to 15% of all cement used.
Note 4: The goals were to remain below the average of the previous two years.
its durability and life cycle. We also opted to use low-fume
and nontoxic cables and wires that are heat-resistant so
that not only can we reach expected power supply during
emergencies, we can also prevent toxic materials from
spreading during the fire and causing further complications.
As to prevent the humidity and chemicals corrosion facilities
such as equipment, structure and cables in the petrochemical
plants, we always had to keep the quality of paint in mind
during construction. To minimize the paint’s effects on human
bodies, we selected paint that has met the environmental
standards during design phase, in order to decrease the risks
of affecting the operational staff from paint additives.With the
newly-introduced life cycle cost analysis software (EEA), we
calculate energy consumption and life cycle cost. In addition
to analyses of economic factors including loans, cash flow,
and recovery period, we include internal and external energy
consumption and costs including those involved in operation,
maintenance, and decommissioning, extending life cycle
analysis to over 20 years.
In the management of the consumption of office supplies,
we have continued to emphasize minimizing unnecessary
printing. When printing is necessary, we print double-sided to
minimize paper consumption. In addition, since 2012, we have
begun to install card identification devices on all multi-function
printers. Employees are required to obtain printed material
using their employee ID card. Double-sided printing setting
is adopted on all computers, minimizing paper consumption
while reminding employees to conserve paper.
