scholarly journals Production of organic fertilizer based on sewage sludge cultivated with grass under an aeration system

Revista CERES ◽  
2021 ◽  
Vol 68 (5) ◽  
pp. 471-483
Author(s):  
Paulo Henrique Silveira Cardoso ◽  
Paula Wellen Barbosa Gonçalves ◽  
Gustavo de Oliveira Alves ◽  
Rodinei Facco Pegoraro ◽  
Regynaldo Arruda Sampaio
Keyword(s):  
Sewage Sludge ◽  
Organic Fertilizer ◽  
Aeration System

scholarly journals Sludge Treatment for Application in Agriculture Should be the Option Number One for Ukraine

2017 ◽  
pp. 356-362
Author(s):  
Lidiia Svirenko ◽  
Viktoriia Bondar
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Organic Fertilizer ◽  
Organic Matter Content ◽  
Treatment Plant ◽  
Matter Content ◽  
Biofuel Production ◽  
National Standard ◽  
Arable Soils ◽  
Climatic Zones

Ukraine is well-known in the world as a country with soil rich for humus. Approximately 68% of arable soils in Ukraine have been classificated as chernozem. For last decades decrease of organic matter content in soils of various agri-climatic zones has been surveyed in the country. The main reason of the mentioned process is enormous lack of organic fertilizer (manure) in agriculture connected with decrease in livestock (in 3 times since year 1992). Besides there is expansion of technical crops for biofuel production (like Brassica napus, Helianthus annuus), which are the provocateurs of soils exhaustion. At the same time such important source of organic matter for application in agriculture as sewage sludge (SS) from wastewater treatment plant (WWTP) is not used in Ukraine nowadays. To stop arable soils degradation in regions it is necessary to develop up-to-date management for fertilizer production on WWTPs. The base for the process has to be the acceptance of the goal-oriented National programme, corresponding governmental decrees and implementation of national standard for using sewage sludge as fertilizer.

scholarly journals PHYSICAL-CHEMICAL CHARACTERIZATION OF SOILS TREATED WITH SEWAGE SLUDGE COMPOST

2010 ◽  
Vol 2 (5) ◽  
pp. 87-92
Author(s):  
Milda Radžiūtė ◽  
Audronė Matusevičiūtė
Keyword(s):  
Heavy Metals ◽  
Water Treatment ◽  
Sewage Sludge ◽  
Organic Waste ◽  
Organic Fertilizer ◽  
Chemical Characterization ◽  
Waste Dump ◽  
Sludge Compost ◽  
Sewage Sludge Compost

Sewage dump is the main organic waste component accumulating in water treatment companies, and therefore the utilization of dump remains a burning issue. Fertilization is the most popular and cheapest way of using sewage dump a part of which is intended for agriculture in most European countries for composting purposes. Sewage dump or its compost are suitable for fertilizing the upper layers of the soil in cases the concentration of heavy metals is not greater than sanitarian standards can tolerate. The examinations were carried out using different waste dump rates from Vilnius water treatment facility in willow (Salix viminalis) grown cultivated fields. The analysis of the soil was executed after one and two years following the fertilization process. The obtained results indicate that waste dump is a valuable organic fertilizer which contains small amounts of heavy metals. Separate heavy metals migrate from sewage sludge compost to plants differently. It was noted that the concentration of heavy metals in willows was greater (except for Pb and Cd) than that in the soil.

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 Planned Application of Sewage Sludge Recirculates Nutrients to Agricultural Soil and Improves Growth of Okra (Abelmoschus esculentus (L.) Moench) Plants

2022 ◽  
Vol 14 (2) ◽  
pp. 740
Author(s):  
Ebrahem M. Eid ◽  
Kamal H. Shaltout ◽  
Saad A. M. Alamri ◽  
Sulaiman A. Alrumman ◽  
Mostafa A. Taher ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Crop Yields ◽  
Growth Parameters ◽  
Low Cost ◽  
Organic Fertilizer ◽  
Abelmoschus Esculentus ◽  
Total Biomass ◽  
Nutrient Contents ◽  
Absolute Growth ◽  
Safe Limits

The aim of this study was to investigate the feasibility of using sewage sludge (SS) biosolids as a low-cost soil fertilizer to improve soil characteristics and crop yields. Okra (Abelmoschus esculentus (L.) Moench) plants were grown in soil supplemented with different concentrations of SS (0, 10, 20, 30, 40, and 50 g/kg). The results showed that SS soil application led to improved soil quality with a 93% increase of organic matter (at SS dose of 10 g/kg), decreased pH (a reduction from 8.38 to 7.34), and enhanced macro- and micro- nutrient contents. The levels of all the investigated heavy metals (HMs; Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) in the postharvest SS-amended soil were within the prescribed safe limits. The application of SS to soil considerably enhanced the growth parameters of okra plants. Total biomass increased 13-fold and absolute growth rate increased 10-fold compared to plants grown in nonamended (control) soils. Among the applied SS doses, the 10 g/kg SS dose led to the highest values of the measured growth parameters, compared to those of plants grown in control soils. The induced growth at 10 g/kg SS was accompanied by a substantial increase in metal content in roots, stems, leaves, and fruits; however, all levels remained within safe limits. Consequently, the data presented in this study suggest that SS could be used as a sustainable organic fertilizer, also serving as an ecofriendly method of SS recycling.

scholarly journals Sewage sludge compost as a substrate for croton seedlings production

2018 ◽  
Vol 24 (4) ◽  
pp. 380-386 ◽  
Author(s):  
Marcela Caetano Lopes ◽  
Caroline De Moura D'Andréa Mateus ◽  
Dávilla Alessandra Da Silva Alves ◽  
Armando Reis Tavares ◽  
Luiz Vitor Crepaldi Sanches ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sugarcane Bagasse ◽  
Organic Fertilizer ◽  
Solution Ph ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Codiaeum Variegatum ◽  
Potting Media ◽  
Eucalyptus Bark ◽  
Organic Compost

The floricultural industry is always searching for new and low-cost materials to use as substrate for crop growth and development. Sewage sludge is an organic solid waste from sewage treatment and it has a good potential to be used as an organic fertilizer and/or substrate conditioner. The research aimed to evaluate the rooting and growth of Codiaeum variegatum ‘Andreanum’ (red variety) and Codiaeum variegatum ‘Punctatum’ (yellow variety) cuttings cultivated in the potting media: PM1 - 100% commercial potting media used as control (CS), PM2 - 100% organic compost of sewage sludge + sugarcane bagasse (SSSB), PM3 - 50% CS + 50% SSSB, PM4 - 100% organic compost of sewage sludge + eucalyptus bark (SSEB) and PM5 - 50% CS + 50% SSEB. After 90 days of experimentation the chemical analysis of the substrate solution (pH, electric conductivity, P, K, Ca, Mg, S, Na, B, Cu, Mn and Zn) and number of shoots, shoot fresh and dry mass, plant cutting fresh and dry masses, root fresh and dry masses, total fresh and dry masses and, length of the largest root were analyzed. Our results showed that sewage sludge compost can be used as a substrate for rooting and growth of croton cuttings when mixed with commercial substrate. The use of the pure sewage sludge compound with sugarcane bagasse or eucalyptus bark prejudiced croton cuttings to root.

Valorization of faecal and sewage sludge via pyrolysis for application as crop organic fertilizer

2020 ◽  
Vol 151 ◽  
pp. 104903
Author(s):  
Miriam Beneireh Nuagah ◽  
Patrick Boakye ◽  
Sampson Oduro-Kwarteng ◽  
Yen Adams Sokama-Neuyam
Keyword(s):  
Sewage Sludge ◽  
Organic Fertilizer

Treatment of sewage sludge

2019 ◽  
Author(s):  
Борис Ксенофонтов ◽  
Boris Ksyenofontov
Keyword(s):  
Graduate Students ◽  
Sewage Sludge ◽  
Microbial Biomass ◽  
Activated Sludge ◽  
Organic Fertilizer ◽  
Federal State ◽  
Technical Literature ◽  
Factors Affecting ◽  
Educational Standard ◽  
State Educational

The training manual consistently addresses issues starting with the formation of sediments, their processing and further disposal or liquidation. Particular attention is paid to the processing and disposal of microbial biomass of excess activated sludge. The reasons for solving the problem of disposal of sewage sludge and activated sludge, which is largely hampered by the presence of toxic impurities, including heavy metals, as well as by the still poorly developed methods of processing these difficult dehydrated systems are set out in sufficient detail. For the first time in the scientific and technical literature, various factors affecting the process of compaction and subsequent thickening of activated sludge and its utilization, in particular the mode of growing microbial biomass, as well as its preliminary preparation using physical and chemical methods are considered. Possible cases of utilization or liquidation of various sewage sludge, including by burning in special furnaces, are described quite widely. Much attention is paid to the selection of the best technologies for dewatering sewage sludge, including excess activated sludge, as well as their disposal. Considered foreign experience, including the Scandinavian countries, the treatment and disposal of sewage sludge as an organic fertilizer. Possible cases of utilization or liquidation of various sewage sludge, including by burning in special furnaces, are described quite widely. Information from regulatory documents with recommendations on pretreatment and subsequent dehydration and disposal of sewage sludge, including excess activated sludge, is provided. Complies with the requirements of the Federal State Educational Standard of Higher Education of the last generation. The book is intended for graduate students studying methods of processing natural and sewage sludge, it is also recommended for the enlarged group of specialties and areas 20.00.00 "Technosphere safety and environmental engineering". The manual will be useful to graduate students, teachers and professionals interested in the issues addressed in it.

Safe Utilization of Municipal Sewage Sludge in Agriculture and Forestry

2015 ◽  
Vol 768 ◽  
pp. 542-552
Author(s):  
Liang Hei ◽  
Hui Wang ◽  
Qi Tang Wu ◽  
Wei Peng Yu
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Municipal Wastewater ◽  
Organic Fertilizer ◽  
Total Yield ◽  
Dry Weight ◽  
Scientific Basis ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Municipal Wastewater Treatment

Municipal sewage sludge has been increasingly produced in China with the development of municipal wastewater treatment. The use of sewage sludge as a fertilizer and soil amendment has resulted in high concentrations of heavy metals in the soil and food limiting its use. Controlling the pollution of heavy metals is the key factor to realize the safe utilization of sewage sludge. The present study was carried out to find scientific basis to the appropriate sludge applications in agriculture and forestry. Pilot experiments inEucalyptusforest showed that the total yield and nutrient amount ofP.hydridumwere significantly higher thanA.marorrhiza, the annual average yield in dry weight and total nutrient amount ofP.hydridumwere 21.32 thm-2and 1248.2 kghm-2, respectively, 9.18 times and 3.58 times that ofA.marorrhiza, soP.hydridumwere more suitable to be the converting plant from sludge to biochar or organic fertilizer. After plants treatment, the maturity of sludge increased significantly, water content and soluble heavy metals decreased obviously, so that the agricultural safety increased, and the all indicators were conformed to the sludge requirements for agricultural use. In addition, theEucalyptustrees grow well with a large spread of sewage sludge. Nutrient contents ofEucalyptusforestland soil increased and heavy metal contents of the topsoil beneath the sludge did not significantly increase.

scholarly journals Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus

2016 ◽  
Vol 5 (1) ◽  
pp. 14-31 ◽  
Author(s):  
Bernard Fei-Baffoe ◽  
Kenneth Osei ◽  
Eric Appiah Agyapong ◽  
Eugene Atta Nyankson
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Solid Waste ◽  
Organic Fertilizer ◽  
University Campus ◽  
Organic Solid Waste ◽  
Organic Solid ◽  
General Decline ◽  
Major Nutrients ◽  
Dewatered Sewage Sludge

Co-composting organic solid waste with dewatered sewage sludge was carried out to determine its suitability for managing waste on a University campus. Windrow composting method was employed in which dewatered sewage sludge and organic solid waste were mixed at volume ratios: 1:1, 1:2, 1:3, 0:1 and 1:0 sludge/organic solid waste. Parameters such as pH, percentage N, C, P, K, Ca, Mg, organic matter, ash content and C/N ratio were determined weekly. Total and faecal coliform population were measured biweekly with Pb and Cd levels determined at the beginning and end of the composting. With the exception of ratio 1:0 sludge/organic solid waste, all other ratios attained a favourable Carbon to Nitrogen (C/N) ratio both at the start and end of the composting process. Levels of major nutrients measured were found to be favourable for use as organic fertilizer. There was a general decline in carbon and organic matter in all the compost piles except the sewage sludge pile (1:0). Apart from the compost ratio 1:0 sludge/organic solid waste, all other ratios attained a temperature of 55°C within 8 days of composting. Generally the compost ratios 1:2, 1:3 and 0:1 (sludge/organic solid waste) were found to be the most suitable for use as organic fertilizer.     International Journal of Environment Vol. 5 (1) 2016,  pp: 14-31     

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