scholarly journals The influence of bioderified on the basis of urban wastewater sediments on agricultural productivity on the example of corn on grain

2020 ◽  
Author(s):  
V. Kruteakova ◽  
◽  
Nina V. Pilyak ◽  
V. Dishliuk ◽  
O. Nikipelova ◽  
...  

Sewage sludge (SS) is a secondary resource that can be used in modern biotechnology to produce fertilizers. This is the bioconversion of organic waste – obtaining available organic raw materials (compost) with the participation of phosphate-mobilizing microorganisms with the addition of fillers. Biofertilizers based on SS of biological treatment plants (SBU) "Southern" and "Northern" of Odessa with different fillers (winter wheat straw and sunflower seed husk) were studied. The effectiveness of biofertilizers was studied in a field experiment on chernozem ordinary medium humus. Culture in the experiment: corn for grain (medium-ripe hybrid FAO 400). According to the results of determining the biological activity of the soil, the highest indicators of corn yield are shown when using new biofertilizers in comparison with the control, which provided an increase in corn yield per grain and improved economic performance.

2020 ◽  
Vol 107 (3) ◽  
pp. 71-78
Author(s):  
V. Krutyakova ◽  
◽  
N. Pyliak ◽  
V. Dyshliuk ◽  
O. Nikipelova ◽  
...  

Efficiency of application of biofertilizers on the basis of sewage sludge of treatment facilities of Odessa The article presents the results of the application of new biofertilizers in the technology of growing corn for grain. Biofertilizers – on the basis of sewage sludge of biological treatment plants «Southern» and «Northern» of Odesa with the addition of winter wheat straw and sunflower seed husk. The effectiveness of the application of biofertilizers based on sewage sludges was studied in a field experiment on black soil ordinary medium humus. According to the results of field research it is established that the use of new biofertilizers based on sewage sludge of biological treatment plants «Southern» and «Northern» of Odesa in corn cultivation technologies increases the quantitative characteristics of microorganisms of different ecological and trophic groups, which, in turn, helps to increase soil fertility and corn yield for grain. Keywords: biological treatment plants, bioorganic fertilizers, efficiency, ecological and trophic groups of microorganisms, rhizosphere, soil fertility.


Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 590
Author(s):  
Aiban Abdulhakim Saeed Ghaleb ◽  
Shamsul Rahman Mohamed Kutty ◽  
Gasim Hayder Ahmed Salih ◽  
Ahmad Hussaini Jagaba ◽  
Azmatullah Noor ◽  
...  

Man-made organic waste leads to the rapid proliferation of pollution around the globe. Effective bio-waste management can help to reduce the adverse effects of organic waste while contributing to the circular economy at the same time. The toxic oily-biological sludge generated from oil refineries’ wastewater treatment plants is a potential source for biogas energy recovery via anaerobic digestion. However, the oily-biological sludge’s carbon/nitrogen (C/N) ratio is lower than the ideal 20–30 ratio required by anaerobic digestion technology for biogas production. Sugarcane bagasse can be digested as a high C/N co-substrate while the oily-biological sludge acts as a substrate and inoculum to improve biogas production. In this study, the best C/N with co-substrate volatile solids (VS)/inoculum VS ratios for the co-digestion process of mixtures were determined empirically through batch experiments at temperatures of 35–37 °C, pH (6–8) and 60 rpm mixing. The raw materials were pre-treated mechanically and thermo-chemically to further enhance the digestibility. The best condition for the sugarcane bagasse delignification process was 1% (w/v) sodium hydroxide, 1:10 solid-liquid ratio, at 100 °C, and 150 rpm for 1 h. The results from a 33-day batch anaerobic digestion experiment indicate that the production of biogas and methane yield were concurrent with the increasing C/N and co-substrate VS/inoculum VS ratios. The total biogas yields from C/N 20.0 with co-substrate VS/inoculum VS 0.06 and C/N 30.0 with co-substrate VS/inoculum VS 0.18 ratios were 2777.0 and 9268.0 mL, respectively, including a methane yield of 980.0 and 3009.3 mL, respectively. The biogas and methane yield from C/N 30.0 were higher than the biogas and methane yields from C/N 20.0 by 70.04 and 67.44%, respectively. The highest biogas and methane yields corresponded with the highest C/N with co-substrate VS/inoculum VS ratios (30.0 and 0.18), being 200.6 mL/g VSremoved and 65.1 mL CH4/g VSremoved, respectively.


Author(s):  
Е.О. СМЫЧАГИН ◽  
С.К. МУСТАФАЕВ

Разработаны технология и установка для переработки отработанных фильтровальных порошков (ОФП) в кормовые продукты (КП) на масложировых предприятиях после вымораживания подсолнечных масел с целью исключения процесса их окисления. Предложена модернизация ранее разработанной авторами технологии переработки отходов очистки семян подсолнечника (ООСП). Рекомендовано добавление во вторичное масличное сырье (ВМС) из ООСП обезжиренных центрифугированием ОФП. Установлено, что центрифугирование необходимо осуществлять в течение 35 мин при 900 об/мин центрифуги. Определена наибольшая эффективность прессования с экструдированием при добавлении 1–3% обезжиренного фильтровального порошка в ВМС. Установлено максимальное количество обезжиренного фильтровального порошка (10%). Совместная переработка ООСП и ОФП на созданной экспериментальной производственной установке позволила получить КП в соответствии с требованиями нормативных документов на подсолнечный жмых и КП «Подсолнечный» для сельскохозяйственных животных. It has been suggested modernizing the previous technology for recycling of sunflower seed waste, developed by the authors that included waste separation to obtain secondary oily raw materials. A technology and installation has been developed for recycling spent filter powders into fodder products immediately after freezing of sunflower oils at oil and fat plants to exclude the process of their oxidation. It is established that the centrifugation must be carried out for 35 min at 900 rpm of the centrifuge. The greatest efficiency of pressing with extrusion is determined when adding 1–3% of fat-free filter powder to secondary oilseeds. The maximum amount of fat-free filter powder (10%) is set. The co-processing of sunflower seeds waste and spent filter powders at the created experimental operation-performing installation made it possible to produce an experimental fodder product which meets the requirements of normative acts for sunflower seed cake and sunflower fodder product «Podsolnechnyy» used for feeding farm animals.


10.6036/10212 ◽  
2021 ◽  
Vol DYNA-ACELERADO (0) ◽  
pp. [ 7 pp]-[ 7 pp]
Author(s):  
Julieta Domínguez Soberanes ◽  
PIA BERGER

This study uses orange peel waste to create a biopolymer that can be used for different purposes. In order to achieve this, we evaluated various technologies for the production of the biopolymer, and tried to design the most environmentally friendly process possible. One of the reasons why this bioplastic should be manufactured is to participate in the replacement of common environmental hazardous plastic, which has been banned in many places. On the other hand, using orange peel as the main ingredient is an alternative and gives value to an organic waste that has limited use in circular economy solutions. In this research we present a methodology to create a bioplastic of orange peels. As a result, we obtained a biodegradable, flexible and resistant material to be used in the manufacture of containers, utensils, etc. In addition, it is a material that, given the raw materials used, is considered GRAS (Generally Recognized As Save), implying a non-toxic product that is safe for the consumer.


2014 ◽  
Vol 953-954 ◽  
pp. 300-303 ◽  
Author(s):  
Fang Yin ◽  
Wu Di Zhang ◽  
Jing Liu ◽  
Hong Yang

The essence of the two phase anaerobic biological treatment process is to place acid bacteria and methane-producing bacteria in two reactors respectively, where it can provide the optimal conditions for their growth and metabolism, allowing them to live up to their maximal activity, which greatly improve processing capacity and efficiency compared to a single-phase anaerobic digestion. The paper start with the two phase anaerobic digestion process, in order to discuss the development direction of high efficient anaerobic digestion system.


2021 ◽  
pp. 36-42
Author(s):  
О.А. Оленин ◽  
С.Н. Зудилин

Развитие органического земледелия, в первую очередь, зависит от наличия органических удобрений и биопрепаратов. Цель исследований – на основе утилизации органических отходов и сырья разработать полифункциональные биопрепараты из компонентов животного и растительного происхождения и изучить их влияние на показатели агрофитоценозов и урожайность полевых и садовых культур. В работе использованы результаты исследований по разработке полифункциональных биопрепаратов, а также их эффективности на опытном поле Самарского ГАУ в 2017-2019 гг. В результате была разработана ассортиментная линейка биопрепаратов «АгроТоник» с функциями удобрения и биостимулятора роста: «Цветовод», «Садовод», «Овощевод», «Полевод», «Лесовод» и «Универсальный». «АгроТоник», в отличие от многих органических и минеральных удобрений, содержит все необходимые для растений компоненты: макро-, мезо- и микроэлементы в легкодоступной форме, микроорганизмы, стимуляторы роста – биоактивные фитогормоны, аминокислоты растительного происхождения, витамины, комплекс целлюлозолитических ферментов, почвенные антибиотики, гуминовые вещества, биоприлипатель. Многокомпонентный биопрепарат с функциями удобрения, фунгицида и бактерицида снижал пораженность растений озимой пшеницы на 16,7-27,1 %, по отношению к контролю, и на 17,4-22,6 %, по сравнению с минеральными удобрениями. Биопрепарат повышал урожайность озимой пшеницы на 7,7-25,4 % по сравнению с контролем, тогда как применение пестицида только на 5,3-11,5 %, при стоимости однократно внесенного гербицида в среднем 500,00 руб./га, а биопрепарата – 300,00 руб./га при двукратной обработке. The development of organic farming primarily depends on the availability of organic fertilizers and biological products. The goal of the research is to develop multifunctional biological products from components of animal and plant origin based on the utilization of organic waste and raw materials and to study their impact on the indicators of agrophytocenoses and the yield of field and horticultural crops. The work uses the results of research on the development of multifunctional biological products, as well as their effectiveness in the experimental field of the Samara State Agrarian University in 2017-2019. As a result, the line of "AgroTonik" biological products with the functions of fertilizer and the growth biostimulator was developed: «Tsvetovod», «Sadovod», «Ovoshchevod», «Polevod», «Lesovod» and «Universal'niy». "AgroTonik", unlike many organic and mineral fertilizers, contains all the components necessary for plants: macro -, meso- and microelements in an easily available form, microorganisms, growth stimulators – bioactive phytohormones, amino acids of plant origin, vitamins, a complex of cellulosolytic enzymes, soil antibiotics, humic substances, bio-sticking agent. The multicomponent biological product with the functions of fertilizer, fungicide and bactericide reduced the affection of winter wheat plants by 16.7-27.1 % concerning the control, and by 17.4-22.6 %, in comparison with mineral fertilizers. The biological product increased the yield of winter wheat by 7.7-25.4% compared to the control, while the use of a pesticide only by 5.3-11.5 %, with the cost of a single herbicide on average 500 rubles/ha, and a biological product – 300 rubles/ha with double treatment.


2002 ◽  
Vol 46 (10) ◽  
pp. 63-70 ◽  
Author(s):  
S. Deleris ◽  
V. Geaugey ◽  
P. Camacho ◽  
H. Debellefontaine ◽  
E. Paul

A combined system associating activated sludge and ozonation was evaluated for the treatment of urban wastewater. Experiments have shown that 70% reduction in sludge production can be reached (compared to a reference system running in low loaded conditions Yobs = 0.28 g VSS.g COD-1) by applying an ozone dosage of 0.05 g O3/g VSStreated. Recycling of the ozonated sludge to the aeration tank induces a slight increase in effluent COD, but the biological treatment performance is maintained. Nitrification capabilities are not altered by the sludge reduction process and active biomass measurements revealed that autotrophic biomass seems to be less affected than the heterotrophs. Significant improvements in sludge settling characteristics are observed.


2016 ◽  
Vol 11 (No. 1) ◽  
pp. 53-63 ◽  
Author(s):  
M.E. Saleh ◽  
A.A. El-Refaey ◽  
A.H. Mahmoud

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 591 ◽  
Author(s):  
Xuyang Cui ◽  
Junhong Yang ◽  
Xinyu Shi ◽  
Wanning Lei ◽  
Tao Huang ◽  
...  

Pelletization is a significant approach for the efficient utilization of biomass energy. Sunflower seed husk is a common solid waste in the process of oil production. The novelty of this study was to determine the parameters during production of a novel pellet made from sunflower seed husk. The energy consumption (W) and physical properties (bulk density (BD) and mechanical durability (DU)) of the novel pellet were evaluated and optimized at the laboratory by using a pelletizer and response surface methodology (RSM) under a controlled moisture content (4%–14%), compression pressure (100–200 MPa), and die temperature (70–170 °C). The results show that the variables of temperature, pressure, and moisture content of raw material are positively correlated with BD and DU. Increasing the temperature and moisture content of raw materials can effectively reduce W, while increasing the pressure has an adverse effect on W. The optimum conditions of temperature (150 °C), pressure (180 MPa), and moisture content (12%) led to a BD of 1117.44 kg/m3, DU of 98.8%, and W of 25.3 kJ/kg in the lab. Overall, although the nitrogen content was slightly high, the novel manufactured pellets had excellent performance based on ISO 17225 (International Organization for Standardization of 17225, Geneva, Switzerland, 2016). Thus, sunflower seed husk could be considered as a potential feedstock for biomass pelletization.


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