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Description
The industrial production of phosphates, the problem of eutrophication in the Great Lakes of North America & the steps being taken to control it.
The industrial production of phosphates, the problem of eutrophication in the Great Lakes of North America & the steps being taken to control it.
| Module code and title: | S247, Inorganic chemistry: concepts and case studies |
|---|---|
| Item code: | S247; 11 |
| First transmission date: | 1981 |
| Published: | 1981 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:05 |
| + Show more... | |
| Producer: | Barrie Whatley |
| Contributors: | Stuart Bennett; Vic Bierman; Valfried Walerson; Bob West |
| Publisher: | BBC Open University |
| Keyword(s): | Algae; Detergent; Eutrophication; Mesotrophic; Oligotrophic; Phosphorus; Phytoplankton; Sodium tripolyphosphate; Zooplankton |
| Subject terms: | Eutrophication; Phosphates |
| Footage description: | Footage - Marchon Works, Cumbria. Lighting a match. Phosphorous. Phosphorous reacting with dichlorine. Phosphorous in water. Phosphorous reacting with dioxygen in air. Phosphorous oxide reacting with water (0'30"-1'47") - Albright & Wilson's plant, Newfoundland. Marchon Works. Phosphoric acid purification plant. Solvent extraction area. Sodium tripolyphosphate plant. Washing powder. Calcium & magnesiums ions added to synthetic detergent and it turns clody, sodium tripolyphosphate added and it turns clear. Towels (1'48"-5'25") - Phosphate fertilizer. River. Niagra Falls. Fishing boats. Algae mats. Weeds & fish under water. Phytoplankton. Zooplankton. Algae (5'34"-8'35") - Graphic of phosphate levels in Canadian Great lakes. Industrial complex on lakeside. Water drain. Waterfall (8'36"-9'33") - US research vessel Hydra collecting scientific data on phosphate (9'34"-10'11") - Hydra lab. Woman working on hydra (11'44"-12'27") - Photoplankton tank. Lab (13'17"-13'43"). Mendota lake. Yachts. Algae on rock (15'39"-16'09") - Stockholm (16'59"-17'10") - Animation of sewage treatment plant. Sewage treatment plant. Lake Constance. Treatment tank. Liquid fertilizer being sprayed on land (17'27"-18'28") - Graphic of Great Lakes. Hydra (18'30"-19'22") - Detroit. Water treatment plant (20'45"-21'21"). |
| Master spool number: | HOU3434 |
| Production number: | FOUS090W |
| Videofinder number: | 4381 |
| Available to public: | no |
