scholarly journals Study of Recycling and Treatment Methods Spent Pot Lining (SPL)

Author(s):  
Hooman Shirmahd ◽  
alireza akhond hafizi ◽  
ata jamavari ◽  
mohammad reza aboutalebi

In this study, a summary of the processes performed on the SPL for recycling, reduction in toxicity and treatment were examined on an industrial and laboratory scale. In writing this research, an attempt has been made to address the useful processes that have taken place in this field. Spent pot lining or SPL is a type of solid waste that is produced in the aluminum production process. After 3 to 8 years, the cathode blocks become problematic and can no longer be used, and need to be replaced due to adverse effects on cell function. SPL is known to be a hazardous waste to nature due to its fluoride and cyanide content. Research has shown that SPL ingredients have destructive and very dangerous effects on human DNA, which is why they are so important to maintain and recycle.

Energy ◽  
1999 ◽  
Vol 24 (3) ◽  
pp. 209-218 ◽  
Author(s):  
A.M Li ◽  
X.D Li ◽  
S.Q Li ◽  
Y Ren ◽  
N Shang ◽  
...  

2015 ◽  
Vol 34 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Muhammad Nasrullah ◽  
Pasi Vainikka ◽  
Janne Hannula ◽  
Markku Hurme ◽  
Pekka Oinas

Environments ◽  
2018 ◽  
Vol 5 (9) ◽  
pp. 103 ◽  
Author(s):  
Leelavathy Karthikeyan ◽  
Venkatesan Suresh ◽  
Vignesh Krishnan ◽  
Terry Tudor ◽  
Vedha Varshini

Due largely to economic development, industrialization, and changing lifestyles, quantity of hazardous waste in India is rising significantly. This is particularly true in mega cities, where populations are large and growing. Due to a range of factors including limitations in governance systems, inadequate treatment facilities, limitations in compliance and regulation, and limited trained and skilled stakeholders, the management of hazardous solid waste in the country is largely ineffective. One exception to this is the State of Gujarat, which has sought to implement a number of strategies to better manage the rising quantities of hazardous solid waste being produced. This article highlights the management of solid waste in the country for an effective mitigation of various hazards. Further, this article focused on adaptive technologies for the hazardous waste management all over the country more specifically in the state of Gujarat.


Author(s):  
Putri Nilakandi Perdanawati Pitoyo ◽  
I Wayan Arthana ◽  
I Made Sudarma

Bali tourism development can lead to positive and negative impacts that threatening environmental sustainability. This research evaluates the hotel performance of the waste management that includes management of waste water, emission, hazardous, and solid waste by hotel that participate at PROPER and non PROPER. Research using qualitative descriptive method. Not all of non PROPER doing test on waste water quality, chimney emissions quality, an inventory of hazardous waste and solid waste sorting. Wastewater discharge of PROPER hotels ranged from 290.9 to 571.8 m3/day and non PROPER ranged from 8.4 to 98.1 m3/day with NH3 parameter values that exceed the quality standards. The quality of chimney emissions were still below the quality standard. The volume of the hazardous waste of PROPER hotels ranged from 66.1 to 181.9 kg/month and non PROPER ranged from 5.003 to 103.42 kg/month. Hazardous waste from the PROPER hotel which has been stored in the TPS hazardous waste. The volume of the solid waste of PROPER hotel ranged from 342.34 to 684.54 kg/day and non PROPER ranged from 4.83 to 181.51 kg/day. The PROPER and non PROPER hotel not sort the solid waste. The hotel performance in term of wastewater management, emission, hazardous, and solid waste is better at the PROPER hotel compared to non PROPER participants.


2009 ◽  
Vol 12 (9) ◽  
pp. 88-97
Author(s):  
Tuan Ngoc Le

In HCMC, there are 958 factories in 12 industrial parks – export processing zones (IP-EPZ) (2006), 1,011 large factories, 6,202 small and medium factories out of IP-EPZ with 24 various industries. More than 700 factories operate in field of buying and recycling solid waste. Besides, there are 21 licenced and series of unregistered factories operating in field of collecting, transporting, treating, and burning industrial solid waste - hazardous waste (ISW-HW). There is the survey deployed in 24 districts (HCMC). The scope of that inquiry is 278 factories in IP-EPZ, 96 large factories, 1,142 small and medium factories out of IP-EPZ. The quantity of industrial solid waste is 1,044 tons per day with 12 percent of hazardous waste. After analysing the advantages and disadvantages of 05 methods used for predicting the quantity of ISW-HW, according to the ability of collecting data related in HCMC, the research has compared and chosen the best method. The results are: 1,641 tons per day (2010); 3,196 tons per day (2015); 7,318 tons per day (2020). With more and more ISW-HW, doing overall researches in order to establish the effective ISW-HW management measures in HCMC, minimize the negative impacts to environment and public health.


Author(s):  
Naiara Angelo Gomes ◽  
José Cleidimário Araújo Leite ◽  
Camilo Allyson Simões de Farias ◽  
Ana Paula Oliveira Silva ◽  
Fernanda Carolina Monteiro Ismael

<p>A destinação ambientalmente inadequada de resíduos sólidos urbanos provoca diversos impactos negativos no meio ambiente, especialmente nos componentes ambientais: solo, água e ar atmosférico. Neste sentido, para que esses efeitos adversos sejam identificados, é necessário conhecer as características do ambiente na área em questão. Neste estudo, objetivou-se a elaboração de um diagnóstico ambiental qualitativo dos meios físico, biótico e antrópico da área do lixão da cidade de Pombal, Estado da Paraíba. A metodologia utilizada teve por base consultas a órgãos públicos, pesquisas bibliográficas, visitas de campo e fotodocumentação. De acordo com os resultados, verificou-se a ocorrência de várias alterações ambientais adversas significativas nos meios físico, biótico e antrópico, típicas da destinação ambientalmente inadequada de resíduos sólidos em “depósitos” a céu aberto, o que tem resultado em uma degradação ambiental local e acarretado danos sociais, sanitários e ecológicos para o município.</p><p align="center"><strong><em>Qualitative Environmental diagnosis in the “dumpsite” of city Pombal, Paraíba</em></strong></p><p><strong>Abstract</strong><strong>: </strong>Environmentally inadequate disposal of municipal solid waste causes many negative impacts on the environment, especially in the environmental components: soil, water and atmospheric air. Then, for these adverse effects were identified, it is necessary to know the characteristics of the environment in the area in question. This study aims to develop a qualitative environmental diagnosis of the physical, biotic and anthropic environment of the dumpsite of <em>Pombal</em> in state of <em>Paraíba</em>, Brazil. The methodology used in the study was based on consultations in government agencies, bibliographic research, field visits and photo documentation. According to the results, it were noted the occurrence of a number of significant adverse environmental changes in the physical, biotic and anthropic environment, typical of solid waste disposal in "deposits" at  openwork, which has resulted in a local environmental degradation and have caused social, health and ecological damage to the municipality.</p>


2021 ◽  
Vol 933 (1) ◽  
pp. 012011
Author(s):  
A N Lathifah ◽  
A A Asmara ◽  
F A N Alfisyahr ◽  
F B Maziya

Abstract Chromium (VI) in the production process, such as textile, tannery, and electroplating industry, produce hazardous waste when disposed of directly into the aquatic environment. Several chromium pollutions cases, not only in water but also in the aquatic organism, occurred in some regions in Indonesia. Various methods can reduce the Chromium (VI) waste. One of them is the biological method by employing such kinds of bacteria. Arthrobacter chlorophenolicus is a pioneer bacterium of Mt. Merapi, which can survive in the minimum conditions of the bacterial primary nutrients, carbon, and nitrogen. This study aims to investigate the ability of A. chlorophenolicus to remove Cr (VI) at various concentrations. The research was carried out by growing the A. chlorophenolicus into two nutrient media conditions, minimal and rich-nutrient media containing different concentrations of Cr (VI) (5, 10, 20 ppm) for eight days. The results showed that the A. chlorophenolicus were grown on both minimal and rich-nutrient media. The A. chlorophenolicus could reduce for about 80% of 10 and 20 ppm chromium in eight days. Our results indicate that A. chlorophenolicus, the pioneer bacteria of Mt. Merapi, has a grand promise for use in Cr (VI) remediation even under minimum nutrients conditions.


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