Hygienic substantiation for the possibility to use of sewage sludge as an organic fertilizer

2020 ◽  
Vol 99 (3) ◽  
pp. 259-264
Author(s):  
А.К. K. Маненко ◽  
Галина Михайловна Ткаченко ◽  
О.П. P. Касиян ◽  
С.Т. T. Юрченко
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Agricultural Production ◽  
Chemical Elements ◽  
Organic Fertilizer ◽  
Atomic Absorption Spectrophotometry ◽  
Organic Fertilizers ◽  
Biogenic Elements ◽  
Plant Soil ◽  
Phytotoxic Effect

Introduction. Nowadays, in front of large cities, there is an acute problem for finding ways of environmentally safely dispose of accumulated sewage sludge and the possibility of its use. The most profitable way to utilize sewage sludge is to use them as organic fertilizers in agricultural production due to the high content of biogenic elements (nitrogen, phosphorus, potassium) and organic substances in their composition. However, the presence of heavy metals, pathogens, and other toxicants necessitates the study at the regional level the possibility of using these sediments as fertilizers. In each specific case, it is necessary to apply a scientific approach to the use of sewage sludge, since their composition is characterized by a qualitative and quantitative variation of chemical compounds. The purpose of the study was a hygienic justification for the possibility of using sludge for wastewater treatment from the municipal facilities in agricultural production as an organic fertilizer. Material and methods. The object of the study was sludge after treatment with flocculants and centrifugation and sludge stored on the sites of Lviv municipal facilities for 1, 6 and 18 months. In the experiment, the distribution of sludge components in the “plant-soil” dynamic system, as well as the degree of their accumulation in test plants, was determined. Quantitative determination of the of chemical elements content in samples of sludge and phytomass was carried out by atomic absorption spectrophotometry. Results. The effectiveness of the use of sludge from the municipal facilities for wastewater treatment in agricultural production as an organic fertilizer has been studied. It was found that the sludge dose of 50 tons/ha, using immediately after centrifuge, can not be used in the fields as a fertilizer. This dose caused a high phytotoxic effect on plants. The dose of used sludge (30 tons/ha after 1.5 years of maturing on silty areas) had a less pronounced phytotoxic effect, but the fact of fluorine, lead, cadmium, arsenic, mercury and manganese translocation from soil into the plants in high quantities was observed. This dose also cannot be used in the fields as a fertilizer. The use of a smaller dose should be justified by additional experiments.

scholarly journals HYGIENIC SUBSTANTIATION FOR THE POSSIBILITY TO USE OF SEWAGE SLUDGE AS AN ORGANIC FERTILIZER

2020 ◽  
Vol 99 (3) ◽  
pp. 259-264
Author(s):  
A. K. Manenko ◽  
Halyna M. Tkachenko ◽  
O. P. Kasiyan ◽  
S. T. Yurchenko
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Agricultural Production ◽  
Chemical Elements ◽  
Organic Fertilizer ◽  
Atomic Absorption Spectrophotometry ◽  
Organic Fertilizers ◽  
Biogenic Elements ◽  
Plant Soil ◽  
Phytotoxic Effect

Introduction. Nowadays, in front of large cities, there is an acute problem for finding ways of environmentally safely dispose of accumulated sewage sludge and the possibility of its use. The most profitable way to utilize sewage sludge is to use them as organic fertilizers in agricultural production due to the high content of biogenic elements (nitrogen, phosphorus, potassium) and organic substances in their composition. However, the presence of heavy metals, pathogens, and other toxicants necessitates the study at the regional level the possibility of using these sediments as fertilizers. In each specific case, it is necessary to apply a scientific approach to the use of sewage sludge, since their composition is characterized by a qualitative and quantitative variation of chemical compounds. The purpose of the study was a hygienic justification for the possibility of using sludge for wastewater treatment from the municipal facilities in agricultural production as an organic fertilizer. Material and methods. The object of the study was sludge after treatment with flocculants and centrifugation and sludge stored on the sites of Lviv municipal facilities for 1, 6 and 18 months. In the experiment, the distribution of sludge components in the “plant-soil” dynamic system, as well as the degree of their accumulation in test plants, was determined. Quantitative determination of the of chemical elements content in samples of sludge and phytomass was carried out by atomic absorption spectrophotometry. Results. The effectiveness of the use of sludge from the municipal facilities for wastewater treatment in agricultural production as an organic fertilizer has been studied. It was found that the sludge dose of 50 tons/ha, using immediately after centrifuge, can not be used in the fields as a fertilizer. This dose caused a high phytotoxic effect on plants. The dose of used sludge (30 tons/ha after 1.5 years of maturing on silty areas) had a less pronounced phytotoxic effect, but the fact of fluorine, lead, cadmium, arsenic, mercury and manganese translocation from soil into the plants in high quantities was observed. This dose also cannot be used in the fields as a fertilizer. The use of a smaller dose should be justified by additional experiments.

scholarly journals Sewage Sludge as N-Fertilizers for Crop Production Enabling the Circular Bioeconomy in Agriculture: A Challenge for the New EU Regulation 1009/2019

2021 ◽  
Vol 13 (23) ◽  
pp. 13165
Author(s):  
Mirko Cucina ◽  
Patrizia De Nisi ◽  
Simone Sordi ◽  
Fabrizio Adani
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Manufacturing Process ◽  
Crop Production ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Physiological Status ◽  
The European Union ◽  
Total N ◽  
Eu Regulation

The fertilizer framework in the European Union has recently been reviewed by EU Regulation 1009/2019 that excluded sewage sludge from the list of the possible constituents of organic fertilizers relying on their origin, not on their quality. This paper aimed to carry out a complete characterization of sewage sludge obtained from a pharmaceutical manufacturing process (PDSS) to demonstrate that sewage sludge obtained from a standardized and controlled manufacturing process can be safely recycled as organic fertilizer. The agronomic and environmental characteristics of the PDSS product were analyzed and compared to other organic fertilizers. Its fertilizing potential was also evaluated through plant growth trials. PDSS was characterized by a high concentration of total N (6.6% w/w), which was all present in organic form. PDSS also showed a low concentration of heavy metals, an absence of pathogens and low concentrations of organic contaminants. Plant growth trials showed that the PDSS was able to improve lettuce and carrot growth (+25 and +46% of dry weight compared to the unfertilized control), as well as their physiological status. Considering all the results, the exclusion of sewage sludge relying only on its origin and not on its quality appears to conflict with the principles of the circular bioeconomy.

Efficiency of use of increasing doses of mineral and organic fertilizers on potato in the middle Volga steppe

10.12737/1360 ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. 92-95 ◽  
Author(s):  
Владимиров ◽  
Sergey Vladimirov
Keyword(s):  
Forest Soils ◽  
Climatic Factors ◽  
Potato Crop ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Net Income ◽  
Gray Forest Soils ◽  
Plant Soil ◽  
Middle Volga

The article titles the role of mineral nutrition in the formation of the potato crop of Aroza variety on gray forest soils. During the research years the highest tuber yield on average was obtained 22.56 tons per hectare while treatment by ZHUSS -1 for the treatment of tubers before planting and ZHUSS -2 for conjunction with foliar fertilizers at a dose N150, P150, K150. The yield increased in this variant to 12.89 tons per hectare. The significant fluctuations in productivity of potato Aroza variety were revealed on gray forest soils due to climatic factors. In 2010 dry year the yield ranged from 7.10 tons per hectare up to 12.10 tons per hectare against 80 tons per hectare of organic fertilizers. In humid provided 2012 year, it amounted up 11.43 tons per hectare to 28.87 tons per hectare in the way of application of ZHUSS-1 for the treatment of tubers before planting and ZHUSS-2 in conjunction with foliar fertilizers at a dose N150, P150, K150. 16.90% of nitrogen, 8.27% of phosphorus and 20.03% of potassium were used from the potato plant soil. The fertilizer, depending on the dose were introduced at the following amount: 43,05-43,74% of nitrogen, 15,68-18,06 % of phosphorus, 70,05-75,26 % of potassium. As for the organic fertilizer, the plants have learned 17,34-20,28% of nitrogen, 15,19-17,38% of phosphorus and 25,68-31,31% of potassium. Despite the increase in costs with increasing doses of fertilizers, the highest net income 73001 rubles per hectare and the level of profitability - 106.65% were obtained at the option of applying ZHUSS -1 for the treatment of tubers before planting and ZHUSS -2 in conjunction with foliar fertilizers in N150, P150, K150 dose . In this version there was the lowest cost - 3034 rubles per ton.

scholarly journals Study on the Influencing Factors of Farmers' Purchase Behavior of Organic Fertilizers Based on Logistic Model

2020 ◽  
pp. 29-43
Author(s):  
Luo Lin ◽  
Shi Yu Ming
Keyword(s):  
Agricultural Production ◽  
Agricultural Development ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Purchase Behavior ◽  
Main Body ◽  
Chemical Fertilizers ◽  
The Sustainable Development ◽  
Factors Influencing ◽  
Surrounding Areas

The widespread use of chemical fertilizers has played an important role in China's agricultural development, but with the increasing input of chemical fertilizers, it has caused serious impact on the ecological environment, leading to agricultural non-point source pollution, food safety and many other problems. In order to promote the sustainable development of agriculture, China has issued a series of policies to popularize organic fertilizer in agriculture, which can not only improve the quality of agricultural products, promote agricultural production and increase income, but also make resource utilization of urban and rural organic wastes and protect the environment. Farmers are the main force of agricultural production and also the main body of rural environmental protection. It is of great significance to study farmers' ecological behavior. Through a survey of 407 farmers in the surrounding areas of Chengdu, Sichuan Province in 2019, and the logitstic model constructed based on the survey data, this article analyzed the factors influencing farmers' behavior in purchasing organic fertilizer. The results show that 12 indexes such as farmers' gender, education level, and the number of family farmers are the main factors influencing farmers' purchase of organic fertilizer. At the end, the article puts forward relevant policy recommendations to guide farmers to purchase and apply organic fertilizer.

scholarly journals Conversion of Sewage Sludge and Other Biodegradable Waste into High-Value Soil Amendment within a Circular Bioeconomy Perspective

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6953
Author(s):  
Ewa Neczaj ◽  
Anna Grosser ◽  
Anna Grobelak ◽  
Piotr Celary ◽  
Bal Ram Singh
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Organic Fertilizers ◽  
Municipal Wastewater Treatment ◽  
Biodegradable Waste ◽  
Digestion Process

Resource recovery from biodegradable waste is essential in order to reach the goals of zero circular economy waste generation and zero greenhouse gas emissions from the waste sector. Waste whose management is a real challenge is sewage sludge, mainly because of high concentrations of heavy metals. The aim of this study was to compare the effectiveness of material stabilization during aerobic stabilization of two feedstocks with sewage sludge obtained from different sources, namely, digestate from a municipal wastewater treatment plant and digestate from a co-digestion process. Moreover, the goal of the experiment was to assess the quality of compost in terms of remediation potential. The composting process was carried out for four different mixtures consisting of the mentioned digestates, municipal solid waste, and grass. A better composting efficiency with digestate from the co-digestion process was observed. In that case, a higher temperature in the thermophilic phase (>55 °C) and a higher organic matter loss ratio (60%) were obtained as compared to the process with digestate from wastewater treatment plant. Taking into account the fertilizing properties and the concentration of heavy metals, all obtained composts met the requirements set out in the Polish Regulation for organic fertilizers. Only the content of Helminth eggs in the composts produced with the digestate from the wastewater treatment plant was above the acceptable level. The research also proved that the produced composts can be used in the phytoremediation process of the degraded area. It was found that all composts caused a significant increase in fescue biomass. The highest yield was achieved for compost produced from a mixture with the addition of 30% sewage sludge from the co-digestion process.

scholarly journals Effects of Partial Organic Substitution for Chemical Fertilizer on Antibiotic Residues in Peri-Urban Agricultural Soil in China

Antibiotics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1173
Author(s):  
Baocheng Dong ◽  
Wei Li ◽  
Wenyong Xu
Keyword(s):  
Sewage Sludge ◽  
Soil Quality ◽  
Agricultural Soil ◽  
Management Practices ◽  
Organic Fertilizer ◽  
Chemical Fertilizer ◽  
Organic Fertilizers ◽  
Pig Manure ◽  
Soil Productivity ◽  
Antibiotic Residues

Recycling of organic wastes in agricultural ecosystems to partially substitute chemical fertilizer is recommended to improve soil productivity and alleviate environmental degradation. However, livestock manure- and sewage sludge-derived amendments are widely known to potentially carry antibiotic residues. The aim of this study is to investigate how substituting organic fertilizer for chemical fertilizer affects soil quality and antibiotic residues in agricultural soil, as well as their tradeoffs. A field experiment was conducted with the different treatments of pig manure and sewage sludge as typical organic fertilizers at equal total nitrogen application rates. The analysis of variance showed that the increments on the levels of residual antibiotics in the agricultural soils due to organic substitution for chemical fertilizer by pig manure and sewage sludge were observed. The antibiotic residues ranged from 13.73 to 76.83 ng/g for all treatments. Partial organic substitution significantly increased the sequestration of antibiotics in agricultural soil by 138.1~332.5%. Organic substitution will also significantly improve soil quality, especially for nutrient availability. Based on principal component analysis, organic substitution will strongly affected soil quality and antibiotic contamination. Pearson’s correlation showed that soil physicochemical properties had significant correlations with concentrations of antibiotics in soil, indicating organic fertilizers can promote the persistence of antibiotics in soil by modifying soil quality. To balance the benefits and risks, appropriate management practices of organic fertilizers should be adopted.

scholarly journals Sorption of Heavy Metals by Sewage Sludge and Its Mixtures with Soil from Wastewater Treatment Plants Operating in MBR and INR Technology

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 706
Author(s):  
Robert Kowalik ◽  
Małgorzata Widłak ◽  
Agata Widłak
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Sorption Capacity ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Organic Fertilizer ◽  
Municipal Wastewater Treatment ◽  
Risk Assessment Code ◽  
Municipal Wastewater Treatment Plants

Sewage sludge is a very complex system, with solids and water. It is generated as waste from wastewater treatment. Sewage sludge is used to fertilize agricultural and forest areas and to rehabilitate devastated areas. It is a good organic fertilizer because it contains significant amounts of nutrients beneficial for plant development and humus-forming substances. The composition of sludge from municipal wastewater treatment plants is similar to soil organic matter, therefore it can be used to improve the physicochemical properties of soil, increasing its sorption capacity. Research material was collected in the Swietokrzyskie and Mazowieckie Voivodships. Sewage sludge was collected from the wastewater treatment plants in Sitkowka Nowiny (Sitkowka) and Kunow, as well as high-quality agricultural soil from Opatowiec and sandy-clay soil from Jastrzebie. Research was carried out on the sorption of heavy metals (Cd, Cr, Cu, Pb, Ni, Zn) by mixtures of sewage sludge with soil. The calculations were made for the concentrations of heavy metals in sewage sludge, soil, and sewage sludge–soil mixtures. The geoaccumulation index (Igeo) and the risk assessment code (RAC) were calculated. Increased sorption capacity was demonstrated in samples with a predominance of sewage sludge. It was shown that heavy metals from sewage sludge, after mixing with soil, changed their form from immobile to mobile.

scholarly journals Improving the efficiency of anaerobic disposal of organic waste

2021 ◽  
Vol 263 ◽  
pp. 01014
Author(s):  
Vladimir Shcherbakov ◽  
Valentina Pomogaeva ◽  
Tatyana Shukina ◽  
Konstantin Chizhik ◽  
Victor Bazhenov
Keyword(s):  
Sewage Sludge ◽  
Mass Fraction ◽  
Organic Waste ◽  
Nitrate Nitrogen ◽  
Organic Fertilizer ◽  
Experimental Studies ◽  
Organic Fertilizers ◽  
Mobile Phosphorus ◽  
Agricultural Plants

Experimental studies on the decontamination and stabilization of sludge sites sediment with calcium oxide treated with disinfectant. The results of the research discovered that the sewage sludge of Voronezh City is safe and can be used as organic fertilizer for growing agricultural plants. Determination of the content of macro-elements of mineral nutrition in the soil and the reaction of its environment showed that the application of organic fertilizers in the form of sludge increases the amount of nitrate nitrogen, exchangeable potassium, mobile phosphorus in the soil compared to the non-fertilized sample. Contemporaneously, the mass fraction of impurities of toxic elements in the soil decreases when the sewage sludge is used as an organic-lime fertilizer.

scholarly journals Application of the anaerobic co-digestion method to sewage sludge treatment toward recover green energy and utilize nutrients for agriculture

2021 ◽  
Vol 926 (1) ◽  
pp. 012097
Author(s):  
T Tran ◽  
L T A Hong ◽  
L V Tan
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plants ◽  
Calorific Value ◽  
Green Energy ◽  
Organic Fertilizers ◽  
Treatment Needs ◽  
Digestion Method ◽  
Sludge Treatment ◽  
Urban Wastewater Treatment

Abstract Sewage sludge after urban wastewater treatment needs to be treated intelligently to get maximum benefits. This study proposes a method of anaerobic co-degradation of agricultural sludge and residues to both solve environmental problems and recover a large amount of biogas and organic fertilizers. The results show the potential for energy recovery from biogas and impact assessment of the application directly on the rice fields. It is estimated that biogas recovery from sludge treatment from wastewater treatment plants gives a calorific value of about 76 × 106 MJ/year. Results from the trial crop showed that fertilizer shows good supportability to the plant. The results show that the fertilizer from sewage sludge can be reduced and replaced by 50% to 100% of the number of chemical fertilizers but still give the same yield. The data show that the anaerobic co-digestion method is a suitable method for sludge treatment. The dual objective is to provide valuable benefits from recovered biogas and anaerobic digestion products.

The Initial Study on the Application of Sewage Sludge for Agriculture on the Laboratory Scale

2022 ◽  
Vol 1048 ◽  
pp. 524-530
Author(s):  
Thanh Tran ◽  
Lam Van Giang ◽  
Ho Huu Loc ◽  
Le Thi Anh Hong ◽  
Van Doan Thi ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Rice Husk ◽  
Growth Parameters ◽  
Germination Rate ◽  
Organic Fertilizer ◽  
Treatment Method ◽  
Initial Study ◽  
Organic Fertilizers ◽  
Soil Productivity ◽  
Chemical Fertilizers

Chemical fertilizers currently poison arable agriculture, so organic fertilizers are now a new trend for soil improvement. This study investigates the appropriate ratio of fertilizer use and materials mixed with sewage sludge in the anaerobic co-digestion treatment method, which will best support agriculture. In the study, bio-organic fertilizer was composted of the co-digestion anaerobic with sewage sludge and agricultural wastes such as rice husk, rice husk charcoal, water hyacinth, cassava peel, and then tested on rice. The specific criteria of fertilizers such as total organic (TOC), total nitrogen (TN), and effective phosphorus (P2O5) and plant growth parameters such as germination rate (%), tillering rate, total weight (g) were evaluated. Initial results show the untreated sludge can be impacted negatively on plant development. The concentration of nutrients in the co-digestion composts was meet the requirements of the Ministry of Agriculture’s standards of organic fertilizer. These bio-fertilizers will play an important role in soil productivity and sustainability. Hence, the widespread use of organic fertilizers from waste to partially replace chemical fertilizers will open up opportunities to reduce farming costs for farmers and develop agriculture sustainably.

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