Surgil ESIA Report - Volume III - EKN

OAJ “O’ZLITINEFTGAZ”
ПТЭО «Комплексное обустройство
месторождения Сургиль с извлечением ценных
компонентов»
To ensure the reliability of the water when the water supply conduit for one, there
should be enough water for the liquidation of the accident at the water main and the
additional stock at the time of fire suppression, which is stored in the waterworks MCC.
Before serving waterworks complex chlorinated water. This event is used to sanitize
tanks and pipelines.
For industrial water to meet the following requirements:
- suspended solids - 1.5 mg /жесткость - 1.8 мг-экв/л
- - chlorides - ≤ 146 mg / l
- - sulphates - < 350 mg / l
- рН - 6.5-7.5
To ensure the required water quality provides the installation for the
preparation of process water. Drinking water in the complex is carried out to
ensure communal necessities workers and villagers.
In primary and secondary production of the complex formed, along
with the household, various highly concentrated industrial sewage, which
consists of five separate streams (analog SHGHK).
1. Himzagryaznennye waste water coming from the following process
steps:
- waste water with an alkaline column;
- Spent lye;
2. The flow of oily wastewater. Residual concentration of oil after
purification on hydrocyclones (ABB) is 5 mg / l, the concentration of
suspended solids - 20 mg / liter.
3. The flow of sewage from the plant
suspended solids, mg / - 232
BPKn, mg / l - 268
4. Mineralized waste water
This stream is formed by the waste water from the preparation of natural,
demineralised water and cooling systems (cooling towers). These effluents contain high
amounts of salts.
TDS mineralized flow according to the manufacture of 5 grams per liter.
Wastewater himzagryaznennogo stream is cleaned at treatment plants. Originally
sinks come in a balancing reservoir with mechanical stirring, and then fed into the mixerconverter,
which simultaneously adds sulfuric acid to adjust pH. After adjusting the pH of
the neutralized water flows into the primary settling tank, and then in the sump, where it is
mixed with oily wastewater streams of pre-treatment on masloseparatore.
Processed reagents combined flow himzagryaznennyh and oily industrial wastewater
enters the primary clarifier. After the initial settler clarified water in the receiving pit is
mixed with the flow of industrial and domestic wastewater of pre-machining on the grids
and sand trap. Further, the combined flow enters the stage of biological treatment in aeration
tank.
Книга 2. Часть 2. Проект ЗВОС по строительству ГХК
66