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II. Reading exercises

2.1. Read aloud and give Ukrainian equivalents of the following international words:

industry, commerce, local, company, canal, process, deionization, chlorination, sterilization, generate, office, manufacture, atmosphere, product, to form, total, typical, cycle, system, adequate, geological potential, factor, chief, sanitary, control, gravity, pump, distance, information, start, alternative, economical, emission, operation.

2.2. Read word-combinations with the word “water” and translate them into Ukrainian:

water

supply

disposal

treatment

quality

quantity

system

cost

source

scheme

2.3. Practise reading of the following words and word-combinations from the text:

water supply, considerable quantities of water, local water company, through the mains, potable water, fit to drink, underground aquifer, depending on availability, for a particular purpose, may require treatment, treatment processes, water disposal, direct discharge, via the sewer, sewage treatment works, emissions to the atmosphere, total consumption, wastewater, on-site, sewerage system, pH adjustment.

2.4. Memorize the spelling, pronunciation and translation of the following words and word-combinations:

water supply

водопостачання

to consume

споживати

mains

магістраль

potable water

питна вода

to abstract

відводити, добувати, віднімати

borehole

свердловина

to sink (sank, sunk)

занурюватися

aquifer

водоносний горизонт

site

ділянка

availability

наявність, доступність

quality

якість

amount, quantity

кількість

cost

вартість

a particular purpose

певна мета, ціль

to require treatment

потребувати очистки

wastewater

стічні води

water disposal

водовідведення

discharge

скидати, скид

sewer

колектор, каналізаційна труба

sewage

стічні води

sewage treatment works

водоочисна станція

emission

викид

due to

через, завдяки

sewerage system

каналізаційна система

2.4. Read and translate the following text. Suggest the title for it. Text a.

Water supply.

Industry and commerce consume considerable quantities of water each year.

This water is obtained in two ways:

■ supplied by the local water company through the mains water system as potable water, i.e. water that is fit to drink;

■ abstracted directly from rivers or boreholes sunk into an underground aquifer.

A particular site may use water from several sources, e.g. from the mains, a river, a borehole, a canal, etc, depending on availability, quality and cost. Before it can be used for a particular purpose, the water may require treatment. Treatment processes include solids removal, pH adjustment, deionisation, chlorination, deaeration, sterilization, etc. These treatment processes usually generate their own wastewater flows.

Water disposal.

Virtually all of the water supplied to a site, factory or office is returned to a river or the sea by:

■ direct discharge;

■ via the sewer and the local sewage treatment works.

Some of the water entering a manufacturing site leaves that site either as emissions to the atmosphere (e.g. due to drying operations) or in the site's products (e.g. in the food and drink industry). However, these amounts of water generally form a small part of total consumption.

Wastewater may need to be treated on-site before being discharged either to a watercourse or to the sewerage system.

Fig 2 shows a typical cycle for water taken from a river by industry and commerce.

Fig. 2. Generalized flow of water to industry or commerce.

Typical uses.

Water is used for different purposes depending on the nature of the business and the processes carried out. Table 1 lists some typical uses, together with the normal source of water for each category.

Table 1.

Typical uses of water.

Purpose

Description

Typical source

Cooling

To remove heat from rotating machinery.

To reduce the temperature of process materials.

To condense vapours.

Directy from river (when available). Returned directly to river.

Borehole.

Processing

Direct contact with raw materials and products to dilute, mix, heat/cool, separate raw materials and products.

Mains water.

Cleaning

Used during maintenance activities to clean equipment for:

– hygiene reasons;

– product quality reasons;

– product changeover.

Mains water.

Sanitary

Used by people for drinking, washing and flushing toilets.

Mains water.

Steam raising

Generation of steam for process heating.

Mains water.

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