Production function theory and the optimal design of waste treatment facilities

1972 ◽  
Vol 4 (4) ◽  
pp. 279-290 ◽  
Author(s):  
James R. Marsden ◽  
David E. Pingry ◽  
Andrew Whinston
Keyword(s):  
Optimal Design ◽  
Production Function ◽  
Waste Treatment ◽  
Function Theory ◽  
Treatment Facilities

Assessment of bio-medical waste before and during the emergency of novel Coronavirus disease pandemic in India: A gap analysis

2021 ◽  
pp. 0734242X2110214
Author(s):  
Rahul Rajak ◽  
Ravi Kumar Mahto ◽  
Jitender Prasad ◽  
Aparajita Chattopadhyay
Keyword(s):  
Tamil Nadu ◽  
Waste Treatment ◽  
Gap Analysis ◽  
Uttar Pradesh ◽  
Medical Waste ◽  
Government Organizations ◽  
Central Pollution Control Board ◽  
Treatment Facilities ◽  
The Government ◽  
Novel Coronavirus

Considering the widespread transmission of Coronavirus disease (COVID-19) globally, India is also facing the same crisis. As India already has inadequate waste treatment facilities, and the sudden outbreak of the COVID-19 virus has led to significant growth of Bio-medical waste (BMW), consequently safe disposal of a large quantity of waste has become a more serious concern. This study provides a comprehensive assessment of BMW of India before and during the COVID-19 pandemic. Additionally, this article highlights the gaps in the implementation of BMW rules in India. This study uses various government and non-government organizations, reports and data specifically from the Central Pollution Control Board (CPCB). The finding of the study demonstrated that most of the States/Union Territories (UTs) of India are lacking in terms of COVID-19 waste management. India has generated over 32,996 mt of COVID-19 waste between June and December 2020. During this period, Maharashtra (789.99 mt/month) is highest average generator of COVID-19 waste, followed by Kerala (459.86 mt/month), Gujarat (434.87 mt/month), Tamil Nadu (427.23 mt/month), Uttar Pradesh (371.39 mt/month), Delhi (358.83 mt/month) and West Bengal (303.15 mt/month), and others respectively. We draw attention to the fact that many gaps were identified with compliance of BMW management rules. For example, out of all 35 States/UTs, health care facilitates (HCFs), only eight states received authorization as per BMW management rules. Moreover, the government strictly restricted the practice of deep burials; however, 23 States/UTs are still using the deep burial methods for BMW disposal. The present research suggests that those States/UTs generated on an average of 100 mt/month COVID-19 waste in the last 7 months (June–December 2020) should be considered as a high priority state. These states need special attention to implement BMW rules and should upgrade their BMW treatment capacity.

DEVELOPMENT OF FARM ECONOMY IN NGHE AN PROVINCE

2018 ◽  
Vol 63 (7) ◽  
pp. 114-125
Author(s):  
Trang Nguyen Thi Thanh ◽  
Tuyen Tran Thi ◽  
Yen Hoang Phan Hai ◽  
Hoai Nguyen Thi
Keyword(s):  
Land Use ◽  
Sustainable Development ◽  
Waste Treatment ◽  
Animal Husbandry ◽  
Development Theory ◽  
Farm Income ◽  
Land Use Efficiency ◽  
Product Consumption ◽  
Production Building ◽  
Treatment Facilities

Nghe An is the largest province area in Viet Nam with many favorable conditions for developing farm economy. Researching on the farm economy in Nghe An is approached in the direction of sustainable development theory and from the farm owners. Base on principle of sustainable development to survey 150 farms, which were selected by two criteria group: distribution such as mountains, midland, coast plain and types of farms such as cultivation, animal husbandry, forestry, aquaculture. The content was collected focus on: land use, labor, product value, average farm income and land use efficiency,.... Based on the results analyzed, there are some problems in Nghe An farms development: the scale of farms are small, quality product is not high, dificulties in product consumption, there is not link between farms, environmental protection issues are not paid attention,… This is not meet the need of sustainable development. Some solutions are proposed, such as: expanding farm scale, creating the close links between farm owners and enterprises, applying the scientific advances in production, building the waste treatment facilities and developing specialized products by region advantage, etc.

Analysis of incombustibles in the feedstock to incineration facilities in Republic of Korea for optimum sorting and management

2020 ◽  
pp. 0734242X2096268
Author(s):  
Kyuyeon Kim ◽  
Suyoung Lee ◽  
Wonseok Yang ◽  
Gyunggoo Choi ◽  
Wonseok Lee ◽  
...  
Keyword(s):  
Waste Treatment ◽  
Waste Incineration ◽  
Proximate Analysis ◽  
Optimal Operation ◽  
Construction And Demolition Waste ◽  
Republic Of Korea ◽  
Demolition Waste ◽  
Institutional Management ◽  
Treatment Facilities ◽  
To Receive

The Ministry of Environment, Republic of Korea has implemented the “Framework Act on Resource Recirculation” to activate waste resource recovery. However, industrial waste treatment facilities have some problems related to diversity of waste received for proper management of wastes. Waste incineration facilities are required to receive and process combustible waste and are forbidden to re-consign waste to other waste treatment facilities without any processing. In reality, a large quantity of incombustibles is injected into the incinerator because it is impossible to completely separate the incombustible materials. Therefore, it is necessary to develop additional management criteria for optimal operation of the incineration facility. This study was conducted to improve institutional management of incineration facilities in Korea. Through a literature review and statistics study, incombustible waste management trends were investigated. The characteristics of waste entering incineration facilities were surveyed. Physical composition and proximate analysis of incoming waste were conducted, and properties of the incombustibles mixed in feedstock to waste incineration facilities were examined. As a result of this study, incombustibles mainly consisting of the construction and demolition waste, such as soil, glass, and metals should be separated from feed sent to incinerators. A mechanical screening technique that sorts particles of 30–40 mm in size can be used to separate the incombustibles. Also, management criteria could be proposed to sort and re-consign the incombustibles.

Measurement Methodology for Fulfilling of Waste Acceptance Criteria for Low and Intermediate Level Radioactive Waste in Storages

2011 ◽  
Author(s):  
M. Sokcic-Kostic ◽  
F. Langer ◽  
R. Schultheis
Keyword(s):  
Radioactive Waste ◽  
Waste Treatment ◽  
Storage Period ◽  
Intermediate Level ◽  
Acceptance Criteria ◽  
Waste Storage ◽  
Measurement Methodology ◽  
Treatment Facilities ◽  
Intermediate Level Radioactive Waste ◽  
Radioactive Waste Storage

Low and intermediate level radioactive waste must be sorted and treated before it can be sent to radioactive waste storage. The waste must fulfil an extensive amount of acceptance criteria (WAC) to guarantee a safe storage period. NUKEM Technologies has a broad experience with the building and management of radioactive waste treatment facilities and has developed methods and equipment to produce the waste packages and to gather all the required information.

scholarly journals Assessment of wastewater treatment plant effluent impact on the ecosystem of the river on the basis of the quantitative development of ciliated protozoa characteristic of the aeration tank

2020 ◽  
Author(s):  
R. Babko ◽  
V. Pliashechnyk ◽  
T. Kuzmina ◽  
Y. Danko ◽  
J. Szulżyk-Cieplak ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Aeration Tank ◽  
Quantitative Characteristics ◽  
Quantitative Development ◽  
Treatment Facilities ◽  
The Impact

Abstract The work is devoted to the task of simplifying the assessment of the effect of effluents from treatment facilities on the river hydrobiocenosis. The studies were carried out on the mountain river Uzh (Uzhgorod, Ukraine). Our approach to assessing the impact of waste treatment facilities on the river receiver is based on the estimate of the similarity of species composition and quantitative characteristics of populations of organisms from the aerotank and from the river. It is shown that the quantitative development of populations of species of ciliates from the aeration tank is a good indicator for assessing the degradation of organic matter coming with wastewater. The use of qualitative and quantitative characteristics of the protozoa from the wastewater treatment plant as a criterion for assessing the quality of the environment in the area of wastewater discharge showed their representativeness and effectiveness. The use of a limited number of species makes it possible to conduct an express assessment of the effect of effluents on receiving reservoirs for specialists working with activated sludge in the laboratories of treatment facilities.

scholarly journals Anaerobically-Digested Brewery Wastewater as a Nutrient Solution for Substrate-Based Food Production

Horticulturae ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 43
Author(s):  
Ignasi Riera-Vila ◽  
Neil O. Anderson ◽  
Claire Flavin Hodge ◽  
Mary Rogers
Keyword(s):  
Food Production ◽  
Food Systems ◽  
Waste Treatment ◽  
Nutrient Recycling ◽  
Control Treatment ◽  
Brewery Wastewater ◽  
Waste Streams ◽  
Urban Waste ◽  
Treatment Facilities ◽  
Raw Wastewater

Urban agriculture, due to its location, can play a key role in recycling urban waste streams, promoting nutrient recycling, and increasing sustainability of food systems. This research investigated the integration of brewery wastewater treatment through anaerobic digestion with substrate-based soilless agriculture. An experiment was conducted to study the performance of three different crops (mustard greens (Brassica juncea), basil (Ocimum basilicum), and lettuce (Lactuca sativa) grown with digested and raw brewery wastewater as fertilizer treatments. Mustard greens and lettuce grown in digested wastewater produced similar yields as the inorganic fertilizer control treatment, while basil had slightly lower yields. In all cases, crops in the digested wastewater treatments produced higher yields than raw wastewater or the no fertilizer control, indicating that nutrients in the brewery wastewater can be recovered for food production and diverted from typical urban waste treatment facilities.

Validating CFD Models of Multiphase Mixing in the Waste Treatment Plant at the Hanford Site

2006 ◽  
Author(s):  
Brigette Rosendall ◽  
Chris Barringer ◽  
Feng Wen ◽  
Kelly J. Knight
Keyword(s):  
Radioactive Waste ◽  
Waste Treatment ◽  
Fluid Dynamic ◽  
Experimental Studies ◽  
Treatment Plant ◽  
Cfd Models ◽  
Waste Treatment Plant ◽  
Stable Glass ◽  
Treatment Facilities ◽  
Pre Treatment

The Columbia River in Washington State is threatened by the radioactive legacy of the cold war. Two hundred thousand cubic meters (fifty-three million US gallons) of radioactive waste is stored in 177 underground tanks (60% of the Nation’s radioactive waste). A vast complex of waste treatment facilities is being built to convert this waste into stable glass (vitrification). The waste in these underground tanks is a combination of sludge, slurry, and liquid. The waste will be transported to a pre-treatment facility where it will be processed before vitrification. It is necessary to keep the solids in suspension during processing. The mixing devices selected for this task are known as pulse-jet mixers (PJMs). PJMs cyclically empty and refill with the contents of the vessel to keep it mixed. The transient operation of the PJMs has been proven successful in a number of applications, but needs additional evaluation to be proven effective for the slurries and requirements at the Waste Treatment Plant (WTP). Computational fluid dynamic (CFD) models of mixing vessels have been developed to demonstrate the ability of the PJMs to meet mixing criteria. Experimental studies have been performed to validate these models. These tests show good agreement with the transient multiphase CFD models developed for this engineering challenge.

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