A wastewater treatment plant discharges of effluent into a stream. Just upstream from the discharge point, the stream has an ultimate BOD of 5 mg/L. Assuming a cross-sectional area for the stream equal to 100 m2, what ultimate BOD (in mg/L) would you expect to find at a point of 15,000 m downstream? Wastewater Flow: 4 m3/sec BOD (ultimate): 40 mg/L River Flow: 10 m3/sec Deoxygeneation constant kd: 0.22 day-1

A wastewater treatment plant discharges of effluent into a stream. Just upstream from the discharge point, the stream has an ultimate BOD of 5 mg/L. Assuming a cross-sectional area for the stream equal to 100 m2, what ultimate BOD (in mg/L) would you expect to find at a point of 15,000 m downstream? Wastewater Flow: 4 m3/sec BOD (ultimate): 40 mg/L River Flow: 10 m3/sec Deoxygeneation constant kd: 0.22 day-1

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter12: Water Requirements For Aquaculture

Section: Chapter Questions

Problem 24SA

See similar textbooks

Similar questions

In wastewater BOD level is high but in flowing surface water usually BOD level is very low. Explain.
What natural and human-influenced factors may affect the following water chemistry parameters, and why, specifically, do the perturbations influence the integrity/health of the marsh ecosystem? pH: DO2 concentrations% saturation: Temperature:
Explain the environmental issues that would most likely arise from the water transfer.
The table below shows the water quality results of palm oil mill effluent (POME)which you have analyzed in your laboratory. You are given a task to proposemitigation options for the palm oil mill after interpreting the findings. Interpretthe characteristics of POME and its potential effect on the aquatic system to helpyou in designing the mitigation options. Parameters Value Department of Environment (DOE) Limit pH 3.4 - 4.8 5 - 9 Biochemical Oxygen Demand (BOD) (mg/L) 25,000 - 43,750 100 Chemical Oxygen Demand (COD) (mg/L) 80,000 - 100,000 100 Oil and Grease (mg/L) 4,000 - 5,000 10
Name one water pollutant.
As environmental science student, think at least 5 ways in managing domestic wastewater discharge and briefly describe each.
Define three types of wastewater collection systems (Sewer Systems)? Describe any three sewer materials used in sewer systems.(REPLY IN 15 MIN, IN A HURRY)
You have the intention to build a house in a rural community with limited facilities,hence you need to install a septic tank and drill a well for drinking water. Havingconsidered the location and proximity of both the septic tank and the drinking waterwell, explain the steps you may take to ensure that the drinking water will not becontaminated by leakages from the septic tank in accordance with governmentregulation.
What result can a river with an inflow of domestic sewage rich in organic waste can give?
Prior to better regulatory control of metal release into domesticwastewater systems, crown corrosion of sewer tiles was less ofa problem. Why?
Discuss the water treatment plants methods for treating water to make it potable and the contribution of detergents and other chemical waste to water quality. Compare and contrast two waterways where water contamination is extreme (i.e. the Ganges) and another (i.e. the Golden Horn of Istanbul) where waterways have been cleaned up and rehabilitated and discuss the contributing factors to both situations.
Explain how streams can cleanse themselves andhow these cleansing processes can be overwhelmed.What is wastewater? Describe the state of streampollution in more- and less-developed countries.Give two reasons why lakes cannot cleanse themselves as readily as streams can. Distinguish betweeneutrophication and cultural eutrophication. Listways to prevent or reduce cultural eutrophication.Explain why groundwater cannot cleanse itself verywell. What are the major sources of groundwatercontamination in the United States? List ways to prevent or clean up groundwater contamination. Listsome ways to purify drinking water. Describe the environmental problems caused by the widespread useof bottled water.