TEEX WASTEWATER TREATMENT
CHAPTER 1 WITH COMPLETE
SOLUTIONS
The goals and purpose of the state of Texas for water and wastewater are : - ANSWER-
The purpose of the state for maintaining water quality are:
1, protect public health,
2 protect wildlife,
3, help operating industries,
4, protect economic development,
5, Promote wastewater collection, and disposal systems,
6, Implement the state water plan
How are Total Dissolved Solid measured - ANSWER-Total dissolved solids, are
measured by pouring wastewater through a filter, then weighing the filter.
What are the settling characteristics, of non settleable solids - ANSWER-Non Settleable
solids that do not settle, when left standing for one hour, in an Imhoff cone.
How are Volatile solids measured - ANSWER-Volatile solids, (VSS) are measured, by
burning the residue, from the total solids , in a muffle furnace. The fraction that is
burned off, (volatile) represents, volatile organic solids.
How does temperature, impact D.O. saturation - ANSWER-As the water temperature
increases, the DO saturation level decreases; and as the temperature decreases, the
DO saturation level, increases
What is one difference, in the COD test and BOD test - ANSWER-The COD test, uses
strong chemical oxidation, rather than microbial action
Why are COD values higher, than BOD values - ANSWER-COD values are higher, than
BOD value, because COD tests, utilize a chemical oxidation , of the organic matter,
which is more complete
CHAPTER 1 WITH COMPLETE
SOLUTIONS
The goals and purpose of the state of Texas for water and wastewater are : - ANSWER-
The purpose of the state for maintaining water quality are:
1, protect public health,
2 protect wildlife,
3, help operating industries,
4, protect economic development,
5, Promote wastewater collection, and disposal systems,
6, Implement the state water plan
How are Total Dissolved Solid measured - ANSWER-Total dissolved solids, are
measured by pouring wastewater through a filter, then weighing the filter.
What are the settling characteristics, of non settleable solids - ANSWER-Non Settleable
solids that do not settle, when left standing for one hour, in an Imhoff cone.
How are Volatile solids measured - ANSWER-Volatile solids, (VSS) are measured, by
burning the residue, from the total solids , in a muffle furnace. The fraction that is
burned off, (volatile) represents, volatile organic solids.
How does temperature, impact D.O. saturation - ANSWER-As the water temperature
increases, the DO saturation level decreases; and as the temperature decreases, the
DO saturation level, increases
What is one difference, in the COD test and BOD test - ANSWER-The COD test, uses
strong chemical oxidation, rather than microbial action
Why are COD values higher, than BOD values - ANSWER-COD values are higher, than
BOD value, because COD tests, utilize a chemical oxidation , of the organic matter,
which is more complete
