• Title/Summary/Keyword: Liquid fertilizer

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A Study to Draw a Plan of Liquid Fertilizer Quality Certification Standards for Livestock Manure Management (가축분뇨의 관리를 위한 액비품질인증기준 방안도출 연구)

  • Jeon, Sang-Joon;Kim, Soo-Ryang;Hong, In-Gi;Kim, Ha-Je;Kim, Dong-Gyun;Lee, Myung-Gyu
    • Journal of Animal Environmental Science
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    • v.19 no.2
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    • pp.183-190
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    • 2013
  • Establishment of a new concept of environmental friendly livestock manure management is required based on the facts. But now liquid fertilizer quality in korea shows a large difference among regions and the regulations are uncertain. Focusing on precedent study on main level-grading factors of liquid fertilizer quality certification, the study collected laws and standards related to liquid fertilizer of livestock manure at home and abroad and produced evaluation standards. Liquid fertilizer was divided into four factors (fertilizing value, harmfulness, stability and uniformity). According to each item, scores were awarded based on 16 details: fertilizing value (Nitrogen concentration, the whole concentration of Nitrogen, Phosphoric acid and Kalium), harmfulness (heavy metals, pathogenic microorganism and antibiotics), stability (maturity degree and odour), uniformity (EC, BOD, SS, moisture content and salt). The grade of liquid fertilizer, A (42~48), B (34~41), C (26~33) were rated using total scores.

A Comparative Study on Correlation Through Physiochemical Property Comparision of Livestock Liquid Fertilizer (가축분뇨 액비의 이화학적 특성비교를 통한 상관성 비교연구)

  • Jeon, Sang-Joon;Kim, Soo-Ryang;Hong, In-Gi;Kim, Ha-Je;Kim, Dong-Gyun;Lee, Myung-Gyu
    • Journal of Animal Environmental Science
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    • v.19 no.2
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    • pp.163-168
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    • 2013
  • Today, a desirable way to manage livestock manure is to activate its utilization as a resource. The production of high quality liquid fertilizer of livestock manure is very important because it increases the use of various liquid fertilizer. However, the result of mature evaluation with a maturity measuring instrument for liquid fertilizer showed that the deviation of concentration between liquid fertilizer did not bring into uniformity. The result is also making sure that quality management for liquid fertilizer is not smoothly made. Quality evaluation for compost and liquid fertilizer includes physical, biological, chemical and microbiological methods, but a chemical method is mainly being implemented due to fairness and field application. Therefore, this study figured out correlation in feces and urine through regression analysis of livestock manure and tried to create a research plan to carry out efficient quality analysis of managing livestock manure.

Cost-Effectiveness of Converting Fish Waste into Liquid Fertilizer

  • Kim, Joong-Kyun
    • Fisheries and Aquatic Sciences
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    • v.14 no.3
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    • pp.230-233
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    • 2011
  • To determine the cost-effectiveness of converting fish waste into liquid fertilizer, this study analyzed the production of 3 L of liquid fertilizer from the fermentation of fish waste. The total product cost of the fertilizer was calculated to be $165.26 for a one-batch operation. If the seed culture was repeated five times, the total product cost could be reduced to $36.39/L. According to this analysis, the reutilization of fish waste as liquid fertilizer was not particularly economically attractive at present, and plant-scale production would be necessary for commercialization. This is the first cost-effectiveness analysis of the bioconversion of fish waste into liquid fertilizer.

Feasibility Study on Production of Liquid Fertilizer in a 1 ㎥ Reactor Using Fishmeal Wastewater for Commercialization

  • Gwon, Byeong-Geun;Kim, Joong-Kyun
    • Environmental Engineering Research
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    • v.17 no.1
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    • pp.3-8
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    • 2012
  • A scaled-up bioconversion of fishmeal wastewater (FMW) into liquid fertilizer was performed five times in a $1m^3$ reactor in order to examine the feasibility of commercialization. The importance of aeration was marked. Analyses indicated that dissolved oxygen (DO) level was closely related to the value of oxidation-reduction potential (ORP) and it was crucial to achieve high-quality liquid fertilizer. When pure oxygen was supplied through four diffusers into the reactor, DO levels and ORP values were maintained over 1.2 mg/L and 0.2 mV, respectively all the time during 52 hr of bioconversion. The pH changed from 6.8 to 5.9. The average removal percentages of chemical oxygen demand ($COD_{Cr}$) and total nitrogen (TN) were 75.0% and 71.6%, respectively. Compared to the result acquired in a 5-L reactor, bioconversion of FMW into liquid fertilizer was achieved in a shorter time under the same removal percentages of $COD_{Cr}$ and TN. The 52-hr culture of inoculated FMW was phytotoxic-free and it possessed comparable fertilizing ability to a liquid fertilizer made from the fish waste in hydroponic culture with amino acid contents of 5.93 g/ 100 g sample. From all the above results, transferring lab-scale data to large-scale production appeared to be successful. As a result, the commercialization of a liquid fertilizer made from FMW was feasible.

Nutrient Transfer in the Application of the Swine Slurry Liquid Fertilizer in Rice Paddy (벼 재배에서 양돈분뇨 액비 시용시 양분이동)

  • Kwon, Soon-Ik;Kim, Kwon-Rae;Kim, Min-Kyeong;Jung, Goo-Bok;Hong, Seung-Gil;Shin, Joong-Du;Park, Woo-Kyun;Seong, Ki-Seog;Lee, Deog-Bae
    • Journal of the Korea Organic Resources Recycling Association
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    • v.18 no.4
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    • pp.77-85
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    • 2010
  • Pig slurry has been considered as environmental waste to be treated in an appropriate manner. Recently, there has been the movement toward reusing the pig slurry as an alternative fertilizer sources for agricultural lands. For instance, SCB(Slurry Composting & Biofiltration) liquid fertilizer has been developed and widely used in Korea. However, the impacts of swine slurry liquid fertilizers on both agricultural environment and crop yield have not been investigated yet. Therefore, the current study was conducted to accumulate the basic data which can be subsequently used to determine appropriate application amount of swine slurry liquid fertilizers (SCB liquid fertilizer and storage liquid fertilizer) as well as the application method for each liquid fertilizer. For this, growth of rice was cultivated under the treatment of SCB liquid fertilizer, storage liquid fertilizer, and chemical fertilizer. Also, control treatment (no fertilizer) was included for comparison and all treatments were conducted in five replication. Rice growth was good with the treatment in the order of chemical fertilizer>storage liquid fertilizer>SCB liquid fertilizer>control and likewise, the yield amount of rice straw was in the same order of rice growth. The rice yield amount appeared to be no difference among the treatment except control which showed the least yield amount. Also there was no difference in nitrogen and phosphorus concentrations in rice among the treatment except control which showed the least concentration.

Simultaneous Removal of Organic Pollutants, N, P, and Antibiotics from Liquid Fertilizer using a Microbubble and Catalyst Coupling System (마이크로버블/촉매 융합 시스템을 이용한 액비 내 유기오염물질, N, P 및 항생제 동시 제거)

  • Lee, Dong Gwan;Sim, Young Ho;Paek, Yee;Kwon, Jin Kyung;Jang, Jae Kyung
    • Journal of Environmental Science International
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    • v.28 no.11
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    • pp.983-991
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    • 2019
  • This study investigated the use of a hydroxyl-radicals-generated microbubble/catalyst (MB/Cat) system for removing organic pollutants, nitrogen, and phosphorous from liquid fertilizer produced by livestock wastewater treatment. Use of the MB/Cat system aims to improve the quality of liquid fertilizer by removing pollutants originally found in the wastewater. In addition, a reduction effect has been reported for antibiotics classified as representative non-biodegradable matter. Samples of liquid fertilizer produced by an aerobic biological reactor for swine wastewater treatment were first analyzed for initial concentrations of pollutants and antibiotics. When the MB/Cat system was applied to the liquid fertilizer, TCOD, TOC, $BOD_5$, and $NH_3-N$, and $PO_4-P$ removal efficiencies were found to be approximately 52%, 51%, 30%, 21%, and 66%, respectively. Additionally, Amoxicillin hydrate was removed by 10%, and Chlortetracycline HCl and Florfenicol were not present at detectable levels These findings confirm that the MB/Cat system can be used with livestock wastewater treatment to improve liquid fertilizer quality and to process wastewater that is safe for agricultural re-use.

Effects of top-dressing period on Yield and Storage Quality of Onion(Allium Cepa L.) (추비시기가 양파의 수량 및 저장성에 미치는 영향)

  • 김희대;이찬중;정은호;서전규
    • Korean Journal of Food Preservation
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    • v.10 no.3
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    • pp.267-271
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    • 2003
  • This study was carried out to investigate the yield and storability of onions on top-dressing period. Top-dressing period was applied in February, March and March, April with liquid fertilizer and solid fertilizer of farmhouse practice during the onion growing season. The yields of onion in experimental station field and farmhouse field treated with conventional fertilization were 53.2 and 56.6MT, respectively. However, they were 58.2 and 60.8MT with application of liquid fertilizer in February and March, and 53.6 and 59.1MT with application of liquid fertilizer in March and April. Rotting rates until the end of August were lower with application of liquid fertilizer on February and March(15.8%, 28.9%), compared with application of solid fertilizer by farmhouse practice(23.6%, 41.0%), and were 20.7% and 31.7% by treatment of liquid fertilizer on March and April. In conclusion, treatment of liquid fertilizer on February and March decreased the rotting rate.

The Manufacturing Characteristics of Organic Liquid Fertilizer with Poultry Manure, Soybean Meal, and Rice Bran (계분, 대두박, 쌀겨를 이용한 유기 액비의 제조 특성)

  • Lee, Guang-Jae;Jeon, Jong-Ok;Park, Jae-Ho;Nam, Sang-Young;Kim, Tae-Jung
    • Korean Journal of Organic Agriculture
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    • v.19 no.4
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    • pp.577-587
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    • 2011
  • This study was carried out to evaluate the manufacturing characteristics of organic liquid fertilizer with poultry manure, soybean meal, and rice bran at plastic house in Chungbuk Agricultural Research and Extension Service. Treatment was given 3 treatments; poultry manure+soybean meal (PM+SM), poultry manure+rice bran (PM+RB), and soybean meal+rice bran (SM+RB). The obtained results from this study were summarized as follows; The pH in liquid fertilizer was consistently increased in PM+SM treatment, and was increased after decreased at early season in PM+RB and SM+RB treatments. The electriacl conductivity(EC) in liquid fertilizer was rapidly increased from $2^{nd}$ weeks to $4^{th}$ weeks after fermentation in PM+SM and PM+RB treatments, and was rapidly increased from $4^{th}$ weeks to 6th weeks after fermentation in SM+RB treatment. The amount of $H_2S$ gas occurrence was the highest as $1,200\;mg{\cdot}kg^{-1}$ in early season, and was the lowest as $50\;mg{\cdot}kg^{-1}$ at $12^{th}$ weeks after fermentation of organic liquid fertilizer. The temperature of organic liquid fertilizer was stabilizing in $4^{th}$ weeks after fermentation. The yield of well of nitrogen, phosphate, and potassium was increased with increasing fermentation periods. It was not change from $4^{th}$ weeks after fermentation in content of calcium, magnesium and sodium in organic liquid fertilizer.

The Characteristics of Growth and Fruiting in Chestnut Trees by SCB (Slurry Composting and Biofiltration) Liquid Fertilizer (SCB액비처리에 따른 밤나무 생장 및 결실특성)

  • Kwon, Yong-Hee;Lee, Uk;Hwang, Suk-In;Baik, Eul-Sun
    • Journal of Korean Society of Forest Science
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    • v.98 no.6
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    • pp.676-680
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    • 2009
  • The study was conducted to investigate the characteristics of growth and fruiting in chestnut trees by SCB (Slurry Compostion and Biofilteration) liquid fertilizer instead of Chemical fertilizer. The experiment was done between April, 2008 and September, 2009, using seven years old grafting trees 'Tsukuba'. Fertilizer treatment was designed as follows; SCB liquid fertilizer, chemical fertilizer, organic fertilizers and no fertilized. Results were as follows; In the 2nd year, height and basal diameter gain of 8.04% and 25.90% over than the 1st year by SCB liquid fertilizer. The number of burrs per bearing mother branch showed no significant increment by SCB liquid fertilizer but fruiting rate was higher than other treatments. These results indicated that the SCB liquid fertilizer has a value of new eco-friendly fertilizer.

Effect of Liquid Fertilizer Application using Fish-meal, Bone-meal and Sesame oil-cake on Seed Germination and Growth of Tomato (어분, 골분 및 참깨박을 이용한 발효액비 제조에 따른 무 발아 및 토마토 생육에 미치는 영향)

  • An, Nan-Hee;Lee, Sang-min;Cho, Jung-Rai;Lee, Cho-Rong;Kong, Min-jae
    • Journal of the Korea Organic Resources Recycling Association
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    • v.27 no.4
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    • pp.61-70
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    • 2019
  • This study aimed to investigate the physicochemical characteristics of fish meal, bone meal, and sesame oil cake, which are readily available by-products from agriculture and fisheries, during the process of liquid fertilizer fermentation, and to examine the effects of liquid fertilizer application on seed germination and growth of tomatoes. During processing the fermentation for liquid fertilizers by using fish meal, bone meal, and sesame oil cake liquid fertilizers, the pH of the fertilizer increased in the order of bone meal > fish meal > sesame oil cake, and the concentration increased rapidly up to 30 days in all types of liquid fertilizer. The nitrogen content of the liquid fertilizers increased as fermentation progressed in the order of fish meal > bone meal > sesame oil cake. The phosphorus content increased as fermentation progressed and the highest was 1.0 % in the liquid fertilizer of sesame oil cake. The germination rate and its index of radish seeds were compared for different dilutions of each of the liquid fertilizers. Excluding the 10-fold dilution of the fish meal and oil cake liquid fertilizer, all the treatment groups showed a germination rate ≥ 95 % and the germination index tended to increase with dilution rate of liquid fertilizers. For responses of tomato growth, there were no significant differences among the liquid fertilizer treatment groups; however, the organic content, microbial density, and microbial biomass C in the soil were higher than chemical fertilizer treatment. These results demonstrated that there were differences in the characteristics of liquid fertilizers depending on the materials used, and that liquid fertilizer can be used for nutrition management for the organic crop cultivation.