Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Controls treatment plant machines and equipment to purify and clarify water for human consumption and for industrial use: Operates and controls electric motors, pumps, and valves to regulate flow of raw water into treating plant. Dumps specified amounts of chemicals, such as chlorine, ammonia, and lime into water or adjusts automatic devices that admit specified amounts of chemicals into tanks to disinfect, deodorize, and clarify water. Starts agitators to mix chemicals and allows impurities to settle to bottom of tank. Turns valves to regulate water through filter beds to remove impurities. Pumps purified water into water mains. Monitors panelboard and adjusts controls to regulate flow rates, loss of head pressure and water elevation, and distribution of water. Cleans tanks and filter beds, using backwashing (reverse flow of water). Repairs and lubricates machines and equipment, using handtools and power tools. Tests water samples to determine acidity, color, and impurities, using colorimeter, turbidimeter, and conductivity meter. Adds chemicals such, as alum into tanks to coagulate impurities and to reduce acidity. Records data, such as residual content of chemicals, water turbidity, and water pressure. May operate portable water-purification plant to supply drinking water. (references) |
| Tends water plant equipment that scrubs and purifies gases from smelting furnaces: Starts pumps and fans in scrubber towers and turns valves to regulate flow of water through nozzles. Pulls lever to open car bottom to unload lime from hopper cars into storage tanks. Knocks on bottom of hopper with pry bar or uses portable vibrator to loosen lime remaining in car. Dumps specified number of sacks of sulfate, hydroxide, and fluoride into mixer machines. Starts conveyors to transport mixed chemicals and lime to reactor tanks that make reagent solution. Observes control panel, records readings, and calculates solution temperatures, scrubber fan loads, and flow of treatment solutions, using charts and graphs. Changes basket screens in reactor tanks, using chain hoist, and cleans screens with water or steam. Collects samples of treatment solutions and sludge for laboratory analysis. Measures acidity or alkalinity of clarifier overflow to determine efficiency of impurity recovery, using pH meter. (references) | |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)57 41 54 45 52 2D 54 52 45 41 54 4D 45 4E 54 2D 50 4C 41 4E 54 4F 50 45 52 41 54 4F 52 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010111 01000001 01010100 01000101 01010010 00101101 01010100 01010010 01000101 01000001 01010100 01001101 01000101 01001110 01010100 00101101 01010000 01001100 01000001 01001110 01010100 00100000 01001111 01010000 01000101 01010010 01000001 01010100 01001111 01010010 |
HTML Code (1990) (references)W A T E R - T R E A T M E N T - P L A N T   O P E R A T O R |
ISO 10646 (1991-1993) (references)0057 0041 0054 0045 0052 002D 0054 0052 0045 0041 0054 004D 0045 004E 0054 002D 0050 004C 0041 004E 0054 004F 0050 0045 0052 0041 0054 004F 0052 |
Encryption (beginner's substitution cypher): (references)57355439521554523935544739485415504635485424950395235544952 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
