Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 6.8P
To determine
(a)
The amount of methane gas produced on complete decomposition.
To determine
(b)
The methane produced by natural process.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Note: Don't copy from other websites solution.
Estimate the total generation of Methane from 100 kg of organic waste by means of anaerobic digestion. Assume that organic waste is composed of 60 kg of C, 20 kg of O, 16 kg of N, and 4 kg of H.
Please write it so that I can recognize it.
Problem 6-6 (assume the waste is fed to an anaerobic digester, not landfilled). Use the equation given attached. Find x (moles of CH4) for food and paper as well. Then based moles of methane (x), individually calculate methane generated for paper and food waste and then total it. Provide answers in tons.
Q: Assume a rough estimate of MSW composition is as follows:
% by weight
Moisture content (%)
Paper (assume dry mass all cellulose, C6H10O5)
40
8%
Glass
10
-
Steel
10
-
Aluminum
10
-
Food waste (assume dry mass all sugar, C6H12O6)
30
80%
a) If 20,000 metric tonnes of this waste is for anaerobic digestion, how much methane gas would theoretically be produced?
b) If 20,000 metric tonnes of this waste is for aerobic composting. How much oxygen would theoretically be demanded?
Chapter 6 Solutions
Solid Waste Engineering
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Estimate the theoretical production of landfill gas (CH4 only) from the degradation of 20.3 kg of rapidly decomposable MSW. Assume the density of methane is 0.7177 kg/m3. Note:Hand written solution should not be used.arrow_forwardA city receives 42 tons per day of a solid waste stream with chemical formula C4H17O to their waste to energy facility each day. Estimate the air requirements to combust this waste in cubic ft per day. Assume specific weight of air is 0.075 lb/cu ft and that air is 21% oxygen by weight.arrow_forwardEstimate the total theoretical amount of air that would be required under aerobic conditions to oxidize completely an organic waste with a chemical formula of C120H180O80N2? The final answer should bearrow_forward
- A truck dumped industrial waste into a pit. They found the truck 3 days ago with a pure pool of waste. Your lab finds the BOD5 of this waste to be 80 mg/L with a k=0.1/day. What was the waste source? Here are the 3 nearby suspects: Winery BOD ultimate = 275 mg/L Vinegar manufacturer BOD ultimate = 80 mg/L Pharmaceutical BOD ultimate = 200 mg/Larrow_forwardThe landfill volume required for dry solid waste generated by a food factory per year is 300 m3. After drying the wet solid waste from the factory X% of it is recycled, followed by 2.5X% diversion for composting and 400 m3 for incineration, before the remainder is sent to the landfill. Using the information given below: Density of dry solid waste = 460 kg/m3 Daily generation of wet solid waste = 2200 kg Moisture content of the wet solid waste = 32% (ii) Determine X% and estimate the dimensions of the landfill site if the length: width : depth = 6:5:4arrow_forwardA county generates 1 million ton of municipal solid waste after recycling every year. The town is considering whether the waste is landfilled or incinerated. For disposal of the waste generated in one year, which option is better to produce less volume of greenhouse gases (GHGs)? Which option is better to have less greenhouse effect? We assume that the waste has a chemical formula of C68H111O50 Decomposition of solid waste in incineration is shown in the following reaction. CaHbOcNd+4a+b+2d-c2O2=aCO2↑+b2H2O+dNO↑ 2) water produced from the reaction(s) is not GHG because it is liquid water).arrow_forward
- Calculate the ultimate BOD of a waste if its BOD5 is 100 mg/L and the K is 0.130 d-1arrow_forwardWrong answers will be downvoted An activated sludge system (bioreactor with recycling) has a flow of 5,000 m³/day with X = 3,000 mg SS/L and So= 200 mg/L (BOD). The microbial kinetic constants are Y = 0.6 (mg SS/mg BOD), m = 2 d¹ and K, = 100 mg/L (as BOD, Neglect the death rate). We need to design an aeration system that will remove 90% of the BOD. (1) What is the volume of bioreactor (aeration tank) and HRT? (2) How much amount of WAS (waste activated sludge) is produced per day? (3) Determine the recycling flow rate when the biomass concentration in the clarifier (Xr) is 12,000 mg SS/L.arrow_forwardCan I get a thorough step by step for the following question? The US EPA requires hazardous waste incinerators to meet a standard of 99.99% destruction and removal of organic hazardous constituents injected into the incinerator, which is referred to as "four nines DRE". The efficiency is calculated by measuring the mass flow rate of organic constituents entering the incinerator and the mass flow rate of constituents exiting the incinerator stack, as shown in Figure 1. Draw a mass-balance diagram and determine the allowable quantity of contaminant in the exit stream if the incinerator is burning 1.2000 g/s of hazardous constituents. If the incinerator is 96% efficient in destroying the hazardous constituents, what scrubber efficiency is necessary to meet the EPA standard?arrow_forward
- What is sanitary landfills, Secure landfills, and monofills in solid waste managementarrow_forwardThe majority of municipal solid waste is 64% paper. What ways would you suggest to reduce paper waste?arrow_forwardAn effluent stream sample (500 mL) from a metal-working facility contains 0.52 g nickel sulphate. (i) What is the nickel concentration of this effluent stream (in mg/L)? (ii) Would you regard this concentration as suitable for discharge to the local sewage system? (iii) How much total nickel (in kg) leaves the facility per year in this stream if ~1 ML of effluent is produced?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Solid Waste EngineeringCivil EngineeringISBN:9781305635203Author:Worrell, William A.Publisher:Cengage Learning,
Solid Waste Engineering
Civil Engineering
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Cengage Learning,