Samsun İlinde Kurulabilecek Kompost Tesislerinin COCOSO ve WASPAS Yöntemiyle Optimallik Sıralaması

The compost product, which offers many benefits such as the evaluation of organic wastes, improvement of soil structure, neutralization of toxins and pH balance of the soil, has significant potential for the improvement of our country's lands. Considering the development of animal existence in our country, the production of compost product to be obtained from feces, which is the product of these animal beings, is an issue that needs to be emphasized. The choice of plant location, which must be determined for an investment to be made for the acquisition of this product emerges as a separate problem. For this reason, in this study, the order of optimality among the alternatives for compost plant installation is considered as a multi-criteria decision making problem. For this purpose, the criteria determined for 10 clusters with the potential of 35,829 animals that can produce compost in Samsun were weighted by the SWARA method. The optimal ranking of these 10 compost clusters was carried out using the COCOSO and WASPAS methods, by means of the criteria weights taken into consideration. According to the ranking results obtained from both methods, it was determined that the cluster number 27 was in the first rank, the cluster no 13 was in the second rank, and the cluster no 14 was in the third rank.

Effect of Vinasse Recycling on Effluent Reduction from Distilleries: Case of Metehara Distillery, Ethiopia

This study was conducted at the ethanol plant of Metehara sugar factory, at a laboratory scale, to assess the effect of recycling vinasse into the fermentation process on effluent reduction. Vinasse is an effluent produced from distilleries. The experimental design included vinasse concentrations at 4 dilution rates (0 (control), 20, 35, 50, and 65% of process water) with 2 replicates and 6 responses, as follows: ethanol yield, fermentation efficiency, residual sugar concentration, cell count, cell viability, and calcium oxide content. In this study, the actual operational parameters of the ethanol plant were maintained during the experiment. The result of the experiment indicates that, with up to 20% vinasse recycling, there was no influential impact on the ethanol yield, the fermentation efficiency, the residual sugar concentration, or the calcium oxide content, attributable to the recycling, as compared to the control. Above 20% vinasse recycling, ethanol yield and fermentation efficiency decreased sharply from those of the control. In addition, with 20% vinasse recycling put into practice, the amount of vinasse generated will be reduced by about 19.5% and about 114.2 tons of water will be saved per day. Moreover, the excess amount of vinasse produced by the distillery, which is beyond the handling capacity of bio-compost plant of the distillery, will reduce from 105 to 36.8 tons per day. Therefore, it is possible to recycle vinasse into the fermenter up to 20% on dilution water of Metehara distillery, without causing any impacts on the distillery’s performance.

Growth and productivity of cassava given organic fertilizer and potential waste as a source of animal feed

The research was conducted to determine the growth and productivity of cassava plants that are given organic fertilizers and their potential waste as ruminant animal feed. The research was conducted at Kerthi Winangun Farmers Group, Bukti village, Kubutambahan District, Buleleng Regency. The experiment was arranged in a completely randomized design with three fertilization treatments and twelve replications. The fertilizer given were: cow dung 5 kg/plant (UK1), compost 5 kg/plant (UK2) and cow dung 5 kg/plant + bio urine 300 ml/plant (UK3). The Parameters observed were (1) plant growth (height, Number of leaves and tubers), (2) tuber production, (3) waste (leaf and peel) production and (4) carrying capacity. The result shows that application of 5 kg compost/plant yielded the highest tuber, leaf and peel production was respectively 1789,25±475,50, 667 ± 104 and 416,61±18 g/plant. Production of this peel can be used to feed 1.29-1.52 cattle/ha/year or 10.73-12,68 goat/ha/year. In conclusion, the cassava that was given with 5 kg compost per plant has the highest production to be used as a source of feed for ruminants.

Effect of Organic and Inorganic Fertilization on Yield and Quality Traits of Tritordeum, ‘Bulel’ Variety under Dry Conditions in Greece

Response of tritordeum, ‘Bulel’ variety, on organic and inorganic fertilization was observed through a field experiment in Greece. So as to evaluate, a field experiment was set up in Randomized Complete Block Design (RCBD) where blocks were four fertilizations (control, inorganic, manure, compost). Plant height was affected by fertilization. Thus height was ranged from 65 cm (control) to 71.75 cm (NPK). Concerning, kernel weight, control and the two organic fertilized did not differ. Both protein and gluten has a positive response to inorganic fertilization, values were 16.27 % and 33.45 % respectively. The increase in gluten is not a desirable trait as tritordeum is cultivated for lower gluten levels than wheat. Yield rised with fertilizers with the highest value of 4753.5 kg ha-1. In brief, as first results, there was a positive response of tritordeum to fertilization in the dry conditions of Greece. As far as ‘Bulel’ variety recently became commercial, consequently a few years to further investigate are needed.

Environmental and Economic Analysis of an Anaerobic Co-Digestion Power Plant Integrated with a Compost Plant

Italian power generation through anaerobic digestion (AD) has grown significantly between 2009 and 2016, becoming an important renewable energy resource for the country, also thanks to the generous incentives for produced electricity available in the last years. This work focuses on the economic and environmental issues of AD technology and proposes a techno-economic analysis of investment profitability without government support. In particular, the analysis focuses on an AD power plant fed by zootechnical wastewater and agro-industrial residues coupled to a cogeneration (CHP) system and a digestate-composting plant that produces soil fertilizers. We aim to determine the economic profitability of such AD power plants fed by inner-farm biomass wastes, exploiting digestate as fertilizer, using the cogenerated heat and taking into account the externalities (environmental benefits). Environmental analysis was carried out via a life cycle analysis (LCA), and encompassing the production of biogas, heat/electricity and compost in the downstream process. The un-released environmental emissions were converted into economic benefits by means of a stepwise approach. The results indicate that integrating a compost plant with a biogas plant can significantly increase the carbon credits of the process. The results were evaluated by means of a sensitivity analysis, and they report an IRR in the range of 6%–9% according to the Italian legislative support mechanisms, and possibilities to increase revenues with the use of digestate as fertilizer. The results significantly improve when externalities are included.

Experimental studies of biological product Extracon to produce composts from green manure crops

Annotation Purpose. Establishment of regularities of bioconversion of plant residues in the processes of accelerated biological composting of crop waste using the drug Extracon on the basis of a consortium of soil microorganisms and substantiation of the main provisions of the process. Methods. Experimental studies were carried out in a way of determining the regularities of biothermal processes, the kinetics of temperature regimes and decomposition of organic matter of green manure, as well as changes in the physicochemical properties of compost from the duration of its production. Results. Laboratory researches on composting of plant remains by means of a biological product on the basis of a consortium of soil microorganisms are carried out, results of researches are analyzed and the maintenance of nutrients in ready compost is defined. Conclusions. The results of laboratory researches on compost preparation with the help of biological product Extracon on the basis of a consortium of soil microorganisms are analyzed. It is established that the use of a biological product based on a consortium of soil microorganisms Extracon optimizes biological processes and creates conditions for complete transformation (return to the biological cycle) of plant residues (green manure – clover) within two months from the composting process. Keywords: biological product Extracon, biothermal composting, compost, plant residues.

THE GROWTH RATE OF CELERY (Apium graveolens L.) AT VARIOUS COMPOSITIONS OF ORGANIC AND SYNTHETIC FERTILIZER

This study was aimed at assessing the growth and production of celery plants grown with various compositions of N,P and K fertilizer and compost. The study was done at the Trial Farm of Faculty of Agriculture, Djuanda University, Bogor fiom September to November 2015. A completely randomized design with two factors was used. The factors consisted of compost rate and N,P and K fertilizer rate. Compost was given in four levels, namely no compost (0% R), 26.3% gcompost/plant (50% R), 52.5 g compost/plant (100% R), and 78.7 g compost/plant (150% R). N, P and K fertilizer was given in five levels, namely no fertilizer (0% R), 4 g Urea, 0.3 g SP-36, 0.2 g KCl (25% R), 0.9 g Urea, 0.6 g SP-36, 0.4 g KCI (50% R), 1.3 g Urea, 0.8 g SP-36, 0.6 g KCl (75% R), and 1.7 g Urea, 1.1 g SP-36, 0.8 g KCl (100% R). All fertilizers were administered gradually at the time of planting and 2 weeks after planting. Three replicates were allocated into each treatment making up 60 experimental units. Results showed that celery plants given synthetic fertilizer at 100% R had higher plant height, number of leaves, number of seedlings, harvest fresh weight (g), saleable fresh weight (g), root biomass (g), and root dry weight (g) than those treated with no fertilizer (0% R). Plants treated with 150% compost had higher plant height, number of leaves, harvest fresh weight (g), saleable fresh weight (g), root length (cm), and root dry weight (g) than those treated with no fertilizer (0% R). Thus the best celery growth and production in this study was obtained on plant 150% R compost and 100% R synthetic fertilizer nourished.Key words: celery, compost, N, P, K fertilizer, harvest flesh weight

APLIKASI KOMPOS LIMBAH KULIT BUAH KAKAO DAN JARAK TANAM BERBEDA TERHADAP PERTUMBUHAN TANAMAN TERUBUK (Saccharum edule Hasskarl)

Cocoa fruit skin is a waste that can cause environmental problems around the plantation. One way to utilize the waste of cocoa fruit skin is made organic fertilizer. The use of different spacing will affect the large number of plant unity area and will indirectly affect the absorption of nutrients, water and other growth factors. The purpose of this study was to determine the effect of composting of cocoa fruit skin waste on the growth of cropped plants (Saccharum edule Hasskarl) with different plant spacing. This field experiment was conducted from July to November 2016 with research location in Kecamatan Luwuk Banggai Regency. The experimental design used was factorial in randomized block design with 2 replications, then there were 18 treatment combinations. In this research the first factor of composition of cocoa fruit skin with cow dung consisting of 3 levels namely: P1 = 50 kg of compost: 10 kg of cow dung; P2 = 50 kg: 30 kg; P3 = 50 kg: 50. While the second factor are plant spacing consisting of 3 levels, namely: J1 = 100 cm X 150 cm; J2 = 100 cm X 100 cm; J3 = 100 cm X 50 cm. Based on the result obtained, It showed that the treatment of 50 kg of cocoa fruit skin compost with 50 kg of cow dung (P3) gave the best shoot effect on 5 weeks after planting (WAP) , to the best plant height that is P2 treatment on 3 (WAP), and the best leaf length is P2 treatment on 2 up to 4(WAP).Key words : Compost, Plant Spacing, Terubuk