List of top Solid and Hazardous Waste Management Questions on Waste Management asked in GATE ES

The most suitable method for disposal of municipal solid waste in large cities is:
BOD test is commonly carried out at:
A solid waste of composition \( C_{60}H_{135}O_{50}N_5 \) is to be composted aerobically in a closed vessel mechanical composting facility. Given: all ammonia generated escapes the facility; air contains 23% of Oxygen by weight; 100% excess air requirement for the closed vessel composting facility. The atomic weights: C – 12, H – 1, O – 16, N – 14. The actual air required for composting is:
A solid waste of composition \( C_{60}H_{135}O_{50}N_5 \) is to be composted aerobically in a closed vessel mechanical composting facility. Given: all ammonia generated escapes the facility; air contains 23% of Oxygen by weight; 100% excess air requirement for the closed vessel composting facility. The atomic weights: C – 12, H – 1, O – 16, N – 14. The actual air required for composting is:
According to the Bio-Medical Waste Management Rules, 2016, choose the correct option(s) from the following
Which of the following is the primary objective of the activated sludge process in wastewater treatment?
Choose the correct option(s) from the following in the plastic waste management:
Which option gives the components that are most likely to be present in the segregated combustible fraction (SCF) separated from raw mixed municipal solid waste (MSW)?
Read the following statements with reference to the Kyoto Protocol on Climate Change:
(i) Each signatory (country) has common and equal responsibility.
(ii) Clean Development Mechanism (CDM), Joint Implementation (JI) and International Emission Trading are the three mechanisms under Kyoto Protocol to reduce the greenhouse gas emissions.
(iii) Under Kyoto Protocol, India has agreed to reduce its greenhouse gas emissions by half by 2050 as compared to 2005 emissions.
Which one of the following is correct choice?
Read the following statements:
I. The goal of Life Cycle Analysis (LCA) is to assess the environmental impact of products from a system perspective and to identify possible improvement strategies.
II. Environmental Impact Assessment (EIA) is defined as a process of identifying, predicting, and evaluating the likely impacts of a proposed project or development to define mitigation actions to reduce negative impacts and to provide positive contributions to the natural environment and well-being.
The correct choice is:
The figure shows heat inflow and outflow for a waste-to-energy plant furnace. Assume:
(i) total heat loss = 3% of heat released from waste,
(ii) sensible heat of waste is negligible,
(iii) complete burning of waste.
Given waste feed rate = 70 kg/h, air heat input = 300 kcal/h,
flue gas = 90000 kcal/h, ash = 10000 kcal/h.
Find the heat content of waste (kcal/kg), rounded to one decimal place.
Biodegradable wastes like vegetable peelings from kitchen are usually processed by composting techniques. Which of the following option(s) regarding the processing of biodegradable wastes is/are correct?
As per ‘Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016’ of Govt. of India, the import of hazardous and other wastes from any country shall NOT be permitted for which of the following option(s)?
What is the order of preference of the various elements in integrated waste management hierarchy (highest preference to lowest preference)?
A mechanized stationary container system is proposed for waste collection from a commercial area. The container unloading time is 0.1 hours per container. There are two containers at each location and the drive time between the two locations is 0.2 hours. The maximum waste ‘pick-up time’ is 2.4 hours per trip. The ‘pick-up time’ starts at the instant the truck arrives at the first pick-up location and ends when the last container on the route is emptied. The maximum number of locations which can be covered in a trip by the collection vehicle are _______ (answer in integer).
The United Nations Conference on Environment and Development was held in 1992 in Rio de Janeiro, Brazil. During this conference, several environmental management principles were adopted by many countries. Which one of the following principles allows the governments to take mitigation measures on the environmental issues having serious threats or irreversible damage, even if there is scientific uncertainty about such issues?