Value-Added System of Waste Management through Phospho-Vermicomposting: A Comprehensive Evaluation of Eisenia fetida Mediated Bio-conversion of Organic Residues and Rock Phosphate

Agrica ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 65-71
Author(s):  
Astha Gupta ◽  
Md Asif Hussain ◽  
Shadab Ali Haider
2020 ◽  
pp. 1-11
Author(s):  
Yang Yaxu

The loose logistics market, the weak value-added service capabilities of enterprises, and the backward construction and operation of logistics networks have led to high logistics costs and low efficiency in some enterprises. In order to improve the comprehensive evaluation effect of enterprise logistics enterprise competitiveness, this paper builds a comprehensive evaluation model of logistics enterprise competitiveness based on SEM model based on machine learning technology. Moreover, in order to more accurately grasp the law of customer logistics mode selection behavior, this paper adds the adaptive value of the latent variables of the logistics mode service characteristics obtained through the SEM model to the utility function of the logistics mode to obtain the SEM-NL integrated model. In addition, starting from the analysis of the key factors affecting the competitiveness of enterprise logistics, this paper constructs an evaluation model of enterprise logistics competitiveness, and analyzes and studies the comprehensive competitiveness of enterprise logistics through two aspects of logistics actual competitiveness and logistics future development potential. The research results show that the model constructed in this paper is suitable for the comprehensive evaluation of the competitiveness of logistics enterprises.


Author(s):  
Filippo Vergara Caffarelli

- Effectiveness, efficiency and affordability have been among the key criteria for municipal solid waste management in the Italian legal framework since the so-called "Ronchi Decree" of 1997. The paper analyses the economic performance of waste-collection firms in Italy. We construct a dataset that includes almost all the companies performing waste collection in the provincial capitals of Italy. We investigate their capital structure, profitability, value added, productivity, investment and business development by means of a set of financial ratios. The research is developed through the assessment of the effects on firms' performance of specialisation, localisation, temporal evolution, size and legal form of firms and the remuneration system for waste collection. The aim of this paper is twofold. First, given the almost universal nature of the sample under investigation, we describe the economic and financial structure of waste collection firms in Italy; second, we empirically evaluate the extent to which the sector has taken on the industrial characteristics set forward in the legal framework. Hence the analysis is conducted both at sector level and at firm level. At the aggregate level, it is possible to identify a trend for the sector as a whole towards convergence with the rest of the economy. However, waste management still displays clear signs of backwardness, especially due to weaker financial structure, higher incidence of labour costs on value added and lower investment. Firm-level data are analysed with both univariate and multivariate statistical techniques. The results confirm the general backwardness of the sector, with businesses located in Southern part of Italy lagging even further behind. Moreover, firms simultaneously providing multiple utility services are more profitable than those specialized in the waste sector only. However this appears attributable to cross-subsidisation between services, not economies of scope. Both scale of operations and legal form have a positive impact on firms' profitability, thanks in part to a negative correlation with degree of specialisation. Moreover, the economic performance of waste management firms is significantly pro-cyclical. Finally, the new cost-based remuneration system for collection services produces ambiguous results. It has a positive effect on operational efficiency and productivity but does not increase the return on capital. A simple econometric model is estimated to evaluate the simultaneous impact on firms' performance of specialisation, localisation, temporal evolution, size, legal form and remuneration system, confirming the outcome of the univariate analysis. In the light of our results, the successful "industrialization" of the waste management sector appears still far away.Keywords: local public services, waste management, regulationJEL classifications: L32, L51, Q53Parole chiave: servizi pubblici locali, gestione dei rifiuti urbani, regolamentazione


2019 ◽  
Vol 11 (6) ◽  
pp. 1759
Author(s):  
Olaoluwa Omilani ◽  
Adebayo Abass ◽  
Victor Okoruwa

The paper examined the willingness of smallholder cassava processors to pay for value-added solid wastes management solutions in Nigeria. We employed a multistage sampling procedure to obtain primary data from 403 cassava processors from the forest and Guinea savannah zones of Nigeria. Contingent valuation and logistic regression were used to determine the willingness of the processors to pay for improved waste management options and the factors influencing their decision on the type of waste management system adopted and willingness to pay for a value-added solid-waste management system option. Women constituted the largest population of smallholder cassava processors, and the processors generated a lot of solid waste (605–878 kg/processor/season). Waste was usually dumped (59.6%), given to others (58.1%), or sold in wet (27.8%) or dry (35.5%) forms. The factors influencing the processors’ decision on the type of waste management system to adopt included sex of processors, membership of an association, quantity of cassava processed and ownership structure. Whereas the processors were willing to pay for new training on improved waste management technologies, they were not willing to pay more than US$3. However, US$3 may be paid for training in mushroom production. It is expected that public expenditure on training to empower processors to use solid-waste conversion technologies for generating value-added products will lead to such social benefits as lower exposure to environmental toxins from the air, rivers and underground water, among others, and additional income for the smallholder processors. The output of the study can serve as the basis for developing usable and affordable solid-waste management systems for community cassava processing units in African countries involved in cassava production.


2018 ◽  
Vol 29 (4) ◽  
pp. 594-607 ◽  
Author(s):  
Jeferson Correia ◽  
Ana Júlia Dal Forno ◽  
Cintia Marangoni ◽  
José Alexandre Borges Valle

Purpose The purpose of this paper is to identify and diagnosis waste management practices used by clothing manufacturing companies in Santa Catarina state Brazil. Design/methodology/approach The data for this multiple case study were obtained from interviews and by using a questionnaire to collect company data. After the analysis of the responses to questionnaires issued to 22 companies, a scoring system was developed to systematically classify these companies at either a basic, intermediate or advanced levels. Findings According to the classification used, eight companies were characterized at the basic level, eight at the intermediate level and six as advanced. Most of the companies have already implemented measures for reuse or recycling of textile scraps, probably because of the economic value added. Research limitations/implications The classification system proposed proved to be an effective tool for identifying: if each company had a plan of action involving requirements of Brazil’s National Solid Waste Policy; if the company had a management system in accordance with Law 12,305; the quality of solid waste treatment at the entire company and in its clothing sector; if the company adopted shared responsibility actions; and if it had knowledge of the negative environmental impacts. Originality/value This paper presents a classification system for companies based on a questionnaire. The system allows determining the degree of compliance with Brazilian waste management legislation.


Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2228
Author(s):  
Edgaras Stunžėnas ◽  
Irina Kliopova ◽  
Daina Kliaugaitė ◽  
Rimas Pranas Budrys

A considerable amount of food waste ends up in centralized treatment plants due to the lack of preventive measures, resulting in significant environmental impacts. Hospitality food waste management is even more resource-intensive because of animal by-products regulation. According to this regulation, companies must store and then consign waste to specific waste managers. The extensive need for transportation of high-moisture-content materials is the leading cause of the impact. Moreover, the management of category III animal by-products is costly for companies. A previous study has shown the economic benefits of decentralized animal by-product treatment by intensive composting in catering companies. Although the produced compost was characterized by exceptional quality parameters, it was phytotoxic. The investigation of hospitality waste management is scarcely discussed among scholars, and waste management on a regional scale is nearly absent. This study examines the regional management of hospitality food waste by exploiting the municipal waste management infrastructure and intensive composting at the source. The co-maturation experiment with animal by-products and municipal green waste primary composts showed that the phytotoxicity parameters of the cured compost were in the optimal range or below the thresholds (conductivity (1.1 mS cm−1), dissolved organic carbon (82 mg kg−1), and NH4+/NO3− ratio (0.0027)). Additionally, the amounts of total nitrogen, water-soluble nitrogen, and water-soluble phosphorus in the compost were rated as very high. Finally, inventory and environmental impact analysis of the current and planned management approaches showed a reduction in 12 of 18 impact categories.


Warta LPM ◽  
2015 ◽  
Vol 18 (2) ◽  
pp. 153-162
Author(s):  
Lukman Hakim ◽  
Dedi Hanwar ◽  
Eko Sugiyanto ◽  
Zulfa Irawati

The purpose of this activity is improving knowledge and skill of quail farmer’s in waste management of quail. The management of waste is processing of organic fertilizer. The participate in the activity are quail farmer’s in RW II Sub-village Ginung, Gajahan Village, Colomadu, Karanganyar. The result of this activity in step I that is be good attention from a quail farmer’s especiality at trainning time process of product organic fertilizer. As for its result as follows; trainning and assistence quail farmer’s is followed enthusiastic fully by participant and greeted positive by head of Village Gajahan Colomadu, Karanganyar. That are many question in trainning process of product organic fertilizer. The others result in activity is a quail farmer’s started processing of product organic fertilizer in housebreed themselves. The  processing of product organic fertilizer will be clean in Gajahan Village environment and also this activity will be value added toward income quail farmer’s.


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