Question 1 () Eutrophication results primarily from an increase in the concentration(s) of and/or in lakes. (2 marks) (1) The amount of oxygen required by microorganisms to oxidize organic wastes aerobically is referred to as (spell out - do not give just the acronym). (1 mark) (i) Nitrification is the aerobic axidation of to by microorganisms. (2 marks) and (iv) Two key properties of a coagulant are: (2 marks) Lime-soda softening cannot produce a water completely free of hardness. The presence of hardness ions in the softened water is the result of three factors? Name 2. (v) (2 marks)

Question 1 () Eutrophication results primarily from an increase in the concentration(s) of and/or in lakes. (2 marks) (1) The amount of oxygen required by microorganisms to oxidize organic wastes aerobically is referred to as (spell out - do not give just the acronym). (1 mark) (i) Nitrification is the aerobic axidation of to by microorganisms. (2 marks) and (iv) Two key properties of a coagulant are: (2 marks) Lime-soda softening cannot produce a water completely free of hardness. The presence of hardness ions in the softened water is the result of three factors? Name 2. (v) (2 marks)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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