scholarly journals Valorization of Organic Wastes by Composting Process and Soil Amendment

10.5772/33733 ◽  
2012 ◽  
Author(s):  
Hafedh Rigane ◽  
Khaled Medhioub
Keyword(s):  
Soil Amendment ◽  
Organic Wastes ◽  
Composting Process

scholarly journals Use of Sphagnum Peatmoss in a Composting Process

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 465E-465
Author(s):  
Jean-Yves Daigle
Keyword(s):  
General Population ◽  
Waste Disposal ◽  
Soil Amendment ◽  
Organic Soil ◽  
Buffering Capacity ◽  
Organic Wastes ◽  
Commercial Fishing ◽  
Aerobic Composting ◽  
Composting Process ◽  
Environmental Friendly

The general population is constantly reminded of the need to adopt a more environmental-friendly approach to waste disposal on all scales. Commercial fishing generates large proportions of waste, ranging from 40% to more than 80% of the catch! The objective of conserving the nutrients and other organic values contained in this type of waste is unlikely to be fully met by bulking for aerobic composting with materials of low buffering capacity, such as straw or wood wastes. However, the capacity of peat for deodorizing of decomposing organic wastes as well as its high buffering capacity has been well demonstrated. This presentation shows how the incorporation of sphagnum peatmoss in a composting process contributes significantly to the production of a valuable organic soil amendment.

scholarly journals Study of the lipidic and humic fractions from organic wastes before and after the composting process

1989 ◽  
Vol 81-82 ◽  
pp. 551-560 ◽  
Author(s):  
C. Garcia ◽  
T. Hernandez ◽  
F. Costa ◽  
J.C. del Rio
Keyword(s):  
Organic Wastes ◽  
Composting Process ◽  
Before And After ◽  
Humic Fractions

scholarly journals Biobased Surfactant-Like Molecules from Organic Wastes: The Effect of Waste Composition and Composting Process on Surfactant Properties and on the Ability to Solubilize Tetrachloroethene (PCE)

2008 ◽  
Vol 42 (7) ◽  
pp. 2618-2623 ◽  
Author(s):  
Giorgia Quadri ◽  
Xiaosong Chen ◽  
James W. Jawitz ◽  
Fulvia Tambone ◽  
Pierluigi Genevini ◽  
...  
Keyword(s):  
Organic Wastes ◽  
Surfactant Properties ◽  
Composting Process ◽  
Waste Composition ◽  
Biobased Surfactant

scholarly journals Recovery of organic wastes in the Spanish wine industry. Technical, economic and environmental analyses of the composting process

2009 ◽  
Vol 17 (9) ◽  
pp. 830-838 ◽  
Author(s):  
Luz Ruggieri ◽  
Erasmo Cadena ◽  
Julia Martínez-Blanco ◽  
Carles M. Gasol ◽  
Joan Rieradevall ◽  
...  
Keyword(s):  
Organic Wastes ◽  
Wine Industry ◽  
Composting Process

scholarly journals Co-composting of Olive Mill Waste and Wine-Processing Waste: An Application of Compost as Soil Amendment

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Z. Majbar ◽  
K. Lahlou ◽  
M. Ben Abbou ◽  
E. Ammar ◽  
A. Triki ◽  
...  
Keyword(s):  
Soil Amendment ◽  
Field Experiments ◽  
Environmental Harm ◽  
Winery Wastewater ◽  
Composting Process ◽  
Olive Mill Waste ◽  
Metal Contents ◽  
Phytotoxic Effect ◽  
Mill Waste ◽  
Olive Mill

In order to decrease the environmental harm produced by the agro industries’ wastes’, an investigation of the co-composting of olive mill waste (olive mill wastewater (OMW), olive mill sludge (OMS)) and wine by-products (grape marc and winery wastewater) was done. Three aerated windrows of variable compositions were performed; these windrows differ in terms of their initial composition and the liquid used for their humidification; OMW and wastewater winery were used for humidification to replace water for windrow moistening. Moreover, the main physicochemical parameters (temperature, pH, electrical conductivity, and C/N) were monitored to evaluate the co-composting process. The latter lasted around three months. The elaborated composts were characterized by low C/N ratio, and they were rich in fertilizing and nutriment elements and of low heavy metal contents. The humidification of the windrows with OMW showed effectiveness in improving the windrows temperature, reflected by the high temperatures monitored during the composting process in comparison with the windrow humidified with winery wastewater. Furthermore, a longer thermophilic phase was held in windrows carrying OMS. The valorization of the produced composts for soil amendment significantly improved the soil fertility. Indeed, field experiments showed an increase in radish yield by 10%, the composts were harmless and did not have any phytotoxic effect on radish growth.

scholarly journals Assessment of Physico-chemical, Microbial and Phytotoxic Changes of Various Organic Wastes During their Composting Process

2021 ◽  
Vol 2 (2) ◽  
pp. 21-35
Author(s):  
Fakher Ayed ◽  
Olfa Boussadia ◽  
Hanem Grissa ◽  
Rania Aydi Ben Abdallah ◽  
Hayfa Jabnoun-Khiareddine ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Dry Matter ◽  
Water Retention ◽  
Organic Materials ◽  
Organic Wastes ◽  
Hordeum Vulgare L ◽  
Nutrient Contents ◽  
Composting Process ◽  
Ph Values ◽  
Physico Chemical

In this study, the aerobic composting in windrows of five mixtures of organic materials was compared. Composting temperatures rose to 60-67°C within 7 to 22 days and stayed above 45°C for 4-5 months before declining. Decomposition after 223 days was 40-43% for organic materials and 23-25% for carbon. The pH values decreased during the composting process and became neutral at maturation. Electric conductivity dropped to 3.6-5.22 mS/cm after 170 days. Dry matter increase to 96.2-97.8% within 182 days of composting and dropped to 70.13-73.87% at maturation. Bulk density increased from 0.20-0.26 g/cm3 to 0.34-0.55 g/cm3 and varied depending on composts. Porosity and water retention decreased during composting. Nutrient contents varied over composting times and wastes. Composts' phytotoxicity, evaluated on barley (Hordeum vulgare L.) seeds, decreased by 0.2-13.2% and 63.2-81.3% after 30 and 220 days of composting, respectively. Benefits of composting organic wastes into agriculturally valuable final products was discussed.

scholarly journals Biobased Surfactant-Like Molecules from Organic Wastes: The Effect of Waste Composition and Composting Process on Surfactant Properties and on the Ability to Solubilize Tetrachloroethene (PCE)

2008 ◽  
Vol 42 (22) ◽  
pp. 8613-8613
Author(s):  
Giorgia Quadri ◽  
Xiaosong Chen ◽  
James W. Jawitz ◽  
Fulvia Tambone ◽  
Pierluigi Genevini ◽  
...  
Keyword(s):  
Organic Wastes ◽  
Surfactant Properties ◽  
Composting Process ◽  
Waste Composition ◽  
Biobased Surfactant

scholarly journals Effect of Rice Bran on Continuous Organic Waste Decomposition Processes

2019 ◽  
Vol 9 (1) ◽  
pp. 61
Author(s):  
Reni Sutri Suherman ◽  
Yuri Yamaguchi ◽  
Akira Yanagihara ◽  
Tadashi Yamauchi ◽  
Satoshi Matsuda
Keyword(s):  
Rice Bran ◽  
Organic Waste ◽  
Early Stage ◽  
Organic Wastes ◽  
Decomposition Process ◽  
Waste Reduction ◽  
Microbial Decomposition ◽  
Composting Process ◽  
Decomposition Processes ◽  
Microbial Strain

The mirobial decomposition process of househole waste, mainly food waste, is considered an environmentally friendly way to treat organic wastes. However, there are some problems which often occur, such as low conversion rate and bad smell generation, especially in the early stage of continuous operation systems. Rice bran has been known empirically as an acclerator or improving material for the microbial decomposition process of organic wastes. Unfortuantely, little information about the detailed findings has been obtained so far. This study intended to analyze the effect of rice bran as an activating agent in organic waste decomposition in order to minimalize the problems. Firstly, the effect of rice bran was confirmed. Reactor weight, temperature, moisture content, pH, and microbe number were measured and used as the parameters to confirm the effect of rice bran addition in the decomposition process. It was observed that the total waste reduction during the process was larger in the case of rice bran addition than that of the blank, i.e. without rice bran addition. The other parameters also showed similar tendencies, indicating that rice bran is surely capable of activating the decomposition process. Then, the growth accelerating effect for microorganisms in the composting process was examined by a cultivation test using trypticase-soy liquid medium. The microbe number in the medium with rice bran addition was higher than the medium without rice bran. Secondly, the factors contributing this effect were searched. Although we could narrow down the number of candidate constituent, among them magnesium was one of the major candidates, the precise identification was not possible, possibly because the effect of each nutrient on the microbes varies depending on the kind of microbial strain, and not a single but a combination of multiple nutrients may cause this effect. However, it was confirmed as a whole that rice bran shows a good influence on the growth of many micorbes in the composting process and accelerates the performance of decomposition. 

scholarly journals Diversity of micro-fungi associated with aerobic composting process of organic wastes

2020 ◽  
Vol 18 (2) ◽  
pp. 385-392
Author(s):  
Pham Thi Thu Hang ◽  
Nguyen Thanh Minh ◽  
Tran Thi Yen Nhi ◽  
Nguyen Thi Hoanh ◽  
Dinh Hoang Dang Khoa
Keyword(s):  
Large Scale ◽  
Morphological Characteristics ◽  
Degradation Process ◽  
Organic Wastes ◽  
Aerobic Composting ◽  
Fungal Strains ◽  
Composting Process ◽  
Rdna Sequences ◽  
18S Rdna Sequences ◽  
Living Organisms

Organic waste is gradually degraded during composting process, producing carbon dioxide, water, heat, and humus, the relatively stable end product. The degradation process is carried out by living organisms, of which fungi appear to have the most important role since they break down tough debris (cellulose, lignin, and other resistant materials), enabling other microorganisms to continue the decomposition process. In Binh Duong province, municipal organic wastes, recently, being treated by aerobic composting process at industrial scale. In order to properly control the biological composting process and maximize its efficiency, the understanding of involved microorganisms is essential. Therefore, the objective of this study was to isolate and identify the fungi associated with large scale municipal biosolid waste composting process in Vietnam. In this study, we have isolated 10 morphologically different fungal strains from the composting materials, and classified based on morphological characteristics and 18S rDNA sequences. The results showed that these fungal strains belonged to four different genera, including Aspergillus, Penicillium, Monascus, and Trichoderma. Our observation is in consistent with previous study, which found that Aspergillus, Penicillium are dominant fungi in composting materials due to their able to survive high temperatures and break down variety of bio-solid wastes. Beside of that, the two other genera Trichoderma and Monascus are widely known for their ability to break down lignin-rich materials which difficult for biodegradation. The results would be a useful reference for further studies of diversity, and functions of fungi that involved in municipal biosolid waste composting process in Vietnam environmental conditions.

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