scholarly journals A Novel, Eco-Friendly and Economical Process for Desalination of Water Using Waste Food Materials

2021 ◽  
Vol 37 (3) ◽  
pp. 524-530
Author(s):  
Runjhun Tandon ◽  
Stanzin Lzaod ◽  
Mandeep Singh ◽  
Nitin Tandon ◽  
Agnibha Das Majumdar ◽  
...  

Scarcity of water in this world can be solved by removal of salinity from sea-water but this salinity removal is usually a costly and tedious task. In this work an efficient process has been developed for desalination of water using food waste materials which is completely eco-friendly and economic. A large number of starch rich food materials have been employed for the purpose of desalination of water and it was observed that all of them are effective to remove the salt contained from water, however it was observed that all of those food materials were not equally effective to remove salt contained. Cornflour was seen to be most effective which can remove salinity from sea water up 75-80%. This technology has a great prospect to evolve as a novel and green method for the purpose of desalination of water in near future.

Author(s):  
Tammara Soma

In the near future, Canada will be implementing a national food policy; in doing so, it will be joining a growing number of countries with policies and strategies that address the growing problem of food waste. Food waste is a major economic drain estimated to cost Canada $31 billion dollars annually or $107 billion in true cost, when the costs of wasted water, energy, and resources are included (Gooch & Felfel, 2014). Despite the staggering cost, there is currently a limited number of scholars tackling the issue of food waste in Canada (Abdulla, Martin, Gooch, & Jovel, 2013; MacRae et al., 2016; Parizeau, von Massow, & Martin, 2015). Some of the leading think tanks and research institutions, such as the World Resources Institute (WRI), National Defence Research Council (NRDC), as well as inter-sectoral collaboratives such as Canada’s National Zero Waste Council (NZWC) have identified several priorities to address food waste. Key priorities include, but are not limited to: 1) education and awareness; 2) harmonizing food waste quantification through waste audits and establishing reduction targets; 3) addressing confusion over “best before” labels; 4) incentivizing surplus food donation; and 5) landfill bans on food waste. While these priorities are currently being debated and consulted upon in Canada, several countries around the world have already reached the implementation stage. Canada is therefore in a position to learn from the impacts of policies in other countries with a view to developing a more sustainable, systematic, and just approach to food waste prevention and reduction in Canada.  


2018 ◽  
Vol 252 ◽  
pp. 76-82 ◽  
Author(s):  
Leichang Cao ◽  
Iris K.M. Yu ◽  
Season S. Chen ◽  
Daniel C.W. Tsang ◽  
Lei Wang ◽  
...  
Keyword(s):  

2018 ◽  
Vol 267 ◽  
pp. 242-248 ◽  
Author(s):  
Leichang Cao ◽  
Iris K.M. Yu ◽  
Daniel C.W. Tsang ◽  
Shicheng Zhang ◽  
Yong Sik Ok ◽  
...  

Foods ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 428 ◽  
Author(s):  
Janssens ◽  
Lambrechts ◽  
Osch ◽  
Semeijn

Food production and consumption have remarkable negative environmental effects, in particular food waste. Food waste occurs throughout the entire food system, but households make the largest contribution. Reducing unnecessary waste of food represents a crucial step toward overcoming global issues of food waste, hunger, and climate change. Identifying barriers in reducing food waste is important not only to government and policymakers, but also to food producers, retailers, and marketers. Therefore, the objective of this research was to find out how consumer behavior in daily food provisioning affects food waste. An online survey was set up to question Dutch consumers (partly) in charge of the household’s food management. A total of 211 consumers participated in answering questions on household composition, food management behavior (e.g., food purchase planning) and food waste awareness (i.e., concern about wasting food and intention not to waste food). Results show that purchase behavior in-store was the main driver of food waste. Specifically, participants indicated that buying more food than needed often had led to food waste. In addition, intention not to waste food acted as a moderator in the relationship between planning behavior and food waste. Age appears to have a diminishing impact on wasting food.


2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Ji Su Bae ◽  
Yeo Myung Yoon ◽  
Seon Kyoung Shin ◽  
Dong Jin Lee ◽  
Dong Cheol Seo

Abstract The objective of this study was to determine methane yields (MY) of organic wastes in biogasification facilities according to the mixing ratio of food waste/food waste leachate and sewage sludge. One biogasification facility that treated sewage sludge only was compared with three biogasification facilities treating sewage sludge and food waste. The theoretical MY was derived based on analyses of carbohydrate, fat, and protein to examine the efficiency of the biogasification facility. The average actual MY was 0.424 Sm3CH4/kg volatile solids, which corresponded to 83.7% of theoretical MY. In the case of combined anaerobic digestion (CD) mixing with food waste/food waste leachate, inhibitory factors (volatile fatty acids [VFAs], total nitrogen [TN], and organic matter contents) showed the tendency to have relatively higher values in CD facilities than in the biogasification facility treating sewage sludge only. Mean concentrations of VFAs and TN in the anaerobic digester effluent, and the organic loading rate were 406 mg/L, 3,721 mg/L, and 1.62 kg volatile solids/m3 day, respectively. The influence of anaerobic digester effluent was in charge of 10% within the influent environmental loading rate from the sewage treatment plants associated with the biogasification facilities. Analyses of the microbial community showed that a remarkable change in the structure of methanogens was directly related to different MY in each plant. In particular, Methanoculleus and Methanosaeta increased with an increasing ratio of food waste/food waste leachate to sludge, while Methanococcus and Methanosarcina decreased. In conclusion, CD showed steady operational conditions and high efficiency of MY by injecting food waste/food waste leachate into the anaerobic digester. It met the current criteria for integrated treatment of organic waste in biogasification facilities in South Korea.


2020 ◽  
Vol 54 (4) ◽  
pp. 1246-1269
Author(s):  
Elizabeth A. Minton ◽  
Kathryn A. Johnson ◽  
Maricarmen Vizcaino ◽  
Christopher Wharton
Keyword(s):  

2019 ◽  
Vol 9 (7) ◽  
pp. 1389
Author(s):  
Nripendra SINGH ◽  
Tanuj SINGH ◽  
Dipendra SINGH

Each year around 1.3 billion tons of food goes to trash out of which 22 million pounds is generated from educational institutions. The purpose of this study is to understand the food waste pattern among college students to help minimize waste. The focus is on two food categories - deli and desserts to understand the influence of portion size on plate waste. The data is collected at a dining hall at a large state university in Midwest. Waste audit is conducted using waste stream analysis, which is the gold standard to measure waste. Food waste was collected, segregated, and weighed at the source, which leaves no space for mistake in waste assessment. Results reveal that the size of the served portion does not positively impact the amount of overall food waste. The study is unique as it is the first to provide insight on the influence of relaxed environment on food waste.


Author(s):  
Alina Butu ◽  
Steliana Rodino ◽  
Marian Butu ◽  
Raluca Ion

AbstractSituated at the crossroads between several sectors, from biology, biochemistry, agronomy, management and economy to technology, the bioeconomy represents all uses of bio-resources, whether they come from agricultural land, sea, forest or waste materials. The current bioeconomy strategy of European Union identifies agriculture as one of the sectors mainly supplying biomass. In the last decades, agriculture was constantly transforming towards a knowledge intensive sector. Being almost entirely the physical support for agriculture, the rural regions are expected to become a key player in the development of the bioeconomy activities of the near future. In the modern biobased economies, the rural regions represent more than just a source of raw materials to bioeconomy industries. Future opportunities for the development of the agricultural sector in Romania, thus boosting rural development were identified by conducting a SWOT analysis of the domain through agriculture development.


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