(a) (b) You have conducted a COD test for raw sewage from one of the Sewage Treatment Plants (STP) in Johor Bahru. The COD of the sample was found to be 1,500 mg/L. Explain your finding with regards to the characteristics of the sewage. Make comparison with an expected range of COD value of normal sewage. Draw a schematic diagram of a sewage treatment plant consists of all main components (e.g. preliminary, primary, and secondary treatments). Label all units/processes involved in each component.

(a) (b) You have conducted a COD test for raw sewage from one of the Sewage Treatment Plants (STP) in Johor Bahru. The COD of the sample was found to be 1,500 mg/L. Explain your finding with regards to the characteristics of the sewage. Make comparison with an expected range of COD value of normal sewage. Draw a schematic diagram of a sewage treatment plant consists of all main components (e.g. preliminary, primary, and secondary treatments). Label all units/processes involved in each component.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q 01 a) How will you reduce the turbidity value of a waste water sample by a reagent? Elaborate the process with example. (Assume the data)
A BOD test is run using 100 ml of treated waste H20 mixed with 200ml of pure water. The initial DO of the mixture is 9.0 mg/ml. After 5 days, Do id 4.0 mg/ml. What is the 5-day BOD of the waste water?
The following data have been obtained in a BOD test that is made to determine how well a wastewater treatment plant is operating. You need to process the data. What percentage of the BOD is being removed by this treatment plant? If this is a secondary treatment plant that is supposed to remove 85% of the BOD5, would you say it is operating properly?
A stream flows through a small town where an industry dischargesits effluent into the stream. Upstream characteristics prior to industrial discharge are as follows: fow rate 1000 m3/d, BOD5 2.5 mg/L,nitrates 2.0 mg/L, and temperature 19°C. The industry dischargesat 50 m3/d. According to regulatory requirements, the maximumallowable values in the stream following any discharge are BOD5 30mg/L, nitrates 4.0 mg/L, and temperature differential of 4°C fromupstream conditions. Calculate the maximum allowable values forthe industrial discharge.
The discharge from the Renenutet sugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The Meskhenet Stream has a negligible BOD and the initial deficit after the river and wastewater have mixed is zero. What DO will result if the concentration of the waste(L_w) is reduced by 50%? Assume that the flows remain the same and that the saturation value of DO is 10.83 mg/L in both cases.
sanitary engineering laboratory Test " Conductivity and TDS " Same Question please help to solution 1- What are alternative methods for determining the TDS of aqueous samples?2- What are typical conductivity and TDS values of drinking water in Jordan? How do your data compare with these values?3- What are the main sources of TDS in water and wastewater?
Civil, Environmental Laboratory determinations of an industrial wastewater indicate that its ultimate BOD is 750 mg/L and the k value at 20°C is 0.20 day¹. Calculate the 5-day BOD. What would be the 5-day BOD, if k value dropped to 0.1 day ¹?Note: Ultimate BOD=L=L,
15. Shown below is a set of effluent BOD data from a treatment plant. The plant's permit requires that the weekly average BOD be less than or equal to 20 mg/L with a 90% probability. State whether you think the plant is meeting the requirement and provide appropriate calculations to support your conclusion. Data: 19, 17, 13, 16, 22, 15, 20
sanitary engineering laboratory Test " Conductivity and TDS " Same Question pleas help to solution 1-What are the potential sources of error in this analytical determination How could they be overcome?2- What are alternative methods for determining the TDS of aqueous samples?3- What are typical conductivity and TDS values of drinking water in Jordan? How do your data compare with these values?4- What are the main sources of TDS in water and wastewater?5-What are the potential health and environmental effects if any of extreme TDS values?6- What is the common conductivity reading for deionized, distilled, drinking and waste water?
A test bottle containing just seeded dilution water has its DO level drop by 1.0 mg/L in a five-day test. A 300-ml BOD bottle just filled with 15 ml of wastewater and the rest seeded dilution water (sometimes expressed as a dilution of 1:20) experiences a drop of 7.2 mg/L in the same period. What would be the five day BOD of the waste?
The BOD 2 and BOD 6 of a sewage sample is 250 mg/L and 50 mg/L respectively.Calculate BOD after 4 days?
2 A groundwater (Q1 = 5.0 L/s) reaches a point of convergence (mixing) in a river (Q = 1.0 m3/s) where an industrial wastewater discharge (Q2 = 10 L/s) also converges. /s). If the groundwater has ferrous iron with concentration [Fe2+] = 10.0 mg/L, the industrial wastewater has organic matter with concentration TOC = 50 mg/L, determine the COD of the river downstream of the mixing point.