• 제목/요약/키워드: Waste Crops

검색결과 93건 처리시간 0.029초

석탄회 처리 가축분뇨 퇴비가 옥수수, 호맥 및 알팔파의 생산성에 미치는 영향 (Effects of Fly Ash Supplementation on the Corn, Rye and Alfalfa Yields by Fertilization of Livestock Waste Composting)

  • 고영두;김재황;김두환;유성오;고병구;이수칠;이종찬;김삼철
    • 한국축산시설환경학회지
    • /
    • 제5권1호
    • /
    • pp.63-72
    • /
    • 1999
  • This study was carried out to improve utilization of fly ash. Each animal waste was mixed with fly ash and composted This compost used at forage crops with corn, rye and alfalfa to examine to examine the fertilized efficiency and investigated productivity of forage crops, composition of this copmost and effect of fly ash on soil characteristics and composition. Content of organic matte, P2O5, K2O, CaO, MgO, Mn and B at the soil, which is given fly ash, increased. After the test crops were harvested, pH of the soil was maintained about 7 and contents of organic matter, phosphoric aicd, K, Mg, and B was increased at the soil of used fly ash. As fly ash was mixed, each DM yield of corn and rye was increased 10∼13% and 14∼21% especially alfalfa was increased 35% at the soil which is mixed fly ash with cage layer manure. As fly ash was mixed, each Crude protein (CP) of corn and rye was increased 6∼17% and about 29%, especially, as fly and cage layer manure was mixed CP of alfalfa was increased 33%. In conclusion, as fly ash is mixed with anlmal waste and use at forage crops, It makes the soil good and improve the productivity of forage crops.

수종 공장 폐수에 대한 작물의 피해 반응 (Growth Responses of Crops to Wastes Derived from Some Factories)

  • 강병화;심상인;이상각
    • 한국환경농학회지
    • /
    • 제16권2호
    • /
    • pp.161-165
    • /
    • 1997
  • 본(本) 실험(實驗)은 공장(工場) 폐수(廢水)가 작물(作物)의 생육(生育)에 미치는 영향을 구명(究明)하기 위하여 수도(水稻) 묘(苗)의 초기(初期) 생장(生長)에 미치는 영향을 조사하였고, 벼, 보리, 배추, 참외, 토마토를 파종(播種)한 폿트에 공장(工場) 폐수(廢水)의 농도를 달리하여 처리한 후 작물(作物)의 출현율(出現率)과 건물중(乾物重)을 조사하였다. 실험에 사용된 폐수(廢水)의 종류는 피혁(皮革) 공장(工場), 페놀 수지 공장(工場), 염료(染料) 공장(工場)의 폐수(廢水)였다. 실험의 결과는 다음과 같다. 1. 수도(水稻) 묘(苗)는 각 공장(工場)의 폐수(廢水)에 의하여 억제가 되었으나 피혁(皮革) 공장(工場)의 경우는 1/16이하로 희석(稀釋)된 저농도(低濃度)에 의해서는 촉진(促進)되는 결과를 보였다. 2. 피혁(皮革) 공장(工場)의 경우 각 작물(作物)이 반응은 보리가 가장 피해가 적었고 토마토의 경우 피해가 가장 크게 나타났다. 3. 페놀 수지 폐수(廢水)는 배추와 참외가 크게 나타났고, 보리는 피해가 적었다. 4. 염료(染料) 공장(工場)의 폐수(廢水)는 토마토와 참외가 가장 많이 억제되었고, 보리의 경우 피해의 정도가 낮았다. 5. 각 (各) 작물종(作物種)들의 폐수(廢水)에 대한 반응은 채소인 토마토와 참외의 피해가 컸고, 화곡류인 보리와 벼가 작았다.

  • PDF

농축산바이오매스 고온 혐기성 생분해도 평가 (Thermophilic Anaerobic Biodegradability of Agro-industrial Biomass)

  • 허남효;강호;이승헌
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 한국신재생에너지학회 2010년도 추계학술대회 초록집
    • /
    • pp.101-101
    • /
    • 2010
  • Anaerobic digestion(AD) is the most promising method for treating and recycling of different organic wastes, such as organic fraction of municipal solid waste, household wastes, animal manure, agro-industrial wastes, industrial organic wastes and sewage sludge. During AD, i.e. organic materials are decomposed by anaerobic forming bacteria and fina1ly converted to excellent fertilizer and biogas which is a mixture of carbon dioxide and methane. AD has been one of the leading technologies that can make a large contribution to produce renewable energy and to reduce $CO_2$ and other green-house gas(GHG) emission, it is becoming a key method for both waste treatment and recovery of a renewable fuel and other valuable co-products. Currently some 80% of the world's overall energy supply of about 400 EJ per year in derived from fossil fuels. Nevertheless roughly 10~15% of this demand is covered by biomass resources, making biomass by far the most important renewable energy source used to date. The representative biofuels produced from the biomass are bioethanol, biodiesel and biogas, and currently biogas plays a smaller than other biofuels but steadily growing role. Traditionally anaerobic digestion applied for different biowaste e.g. sewage sludge, manure, other organic wastes treatment and stabilization, biogas has become a well established energy resource. However, the biowaste are fairly limited in respect to the production and utilization as renewable source, but the plant biomass, the so called "energy crops" are used for more biogas production in EU countries and the investigation on the biomethane potential of different crops and plant materials have been carried out. In Korea, with steadily increasing oil prices and improved environmental regulations, since 2005 anaerobic digestion was again stimulated, especially on the biogasification of different biowastes and agro-industrial biomass including "energy crops". This study have been carried out to investigate anaerobic biodegradability by the biochemical methane potential(BMP) test of animal manures, different forage crops i.e. "energy crops", plant and industrial organic wastes in the condition of thermophilic temperature, The biodegradability of animal manure were 63.2% and 58.2% with $315m^3CH_4/tonVS$ of cattle slurry and $370m^3CH_4/tonVS$ of pig slurry in ultimate methane yields. Those of winter forage crops were the range 75% to 87% with ultimate methane yield of $378m^3CH_4/tonVS$ to $450m^3CH_4/tonVS$ and those of summer forage crops were the range 81% to 85% with ultimate methane yield of $392m^3CH_4/tonVS$ to $415m^3CH_4/tonVS$. The forge crops as "energy crops" could be used as good renewable energy source to increase methane production and to improve biodegradability in co-digestion with animal manure or only energy crop digestion.

  • PDF

Effect of Continuous Treatment of Mixed Organic Fertilizer With Food Waste on the Growth of Lettuce

  • Yosep Kang;Ho-Jun Gam;Eun-Jung Park;Seong-Heon Kim;Sang-Mo Kang;In-Jung Lee
    • 한국작물학회:학술대회논문집
    • /
    • 한국작물학회 2022년도 추계학술대회
    • /
    • pp.111-111
    • /
    • 2022
  • According to data from the Ministry of Environment, food waste accounted for 27% of the nation5 s household waste in 2020, and 4.67 million tons of food waste is being discharged per year. According to the Food Waste Direct Landfill Prohibition Act, food waste must be incinerated, composted, fodder, and decomposed before landfilling. The cost of incineration and landfilling of food waste is considerable. Therefore, through the process of turning food waste into fertilizer, we are going to investigate the limit of crop application and the change in the growth of crops during continuous use of food waste fertilizer. This study investigated the growth of lettuce such as shoot length, root length, leaf number, fresh weight, and dry weight after treating lettuce with food waste dry powder mixed fertilizer. The experiment was carried out continuously in 2021 (1st year) and 2022 (2nd year), and the treatment groups were set to No Treatment (NT), Chemical Fertilizer (CF), Mixed Fertilizer (MF×1), and Mixed Fertilizer×2 (MF×2), was repeated 3 times. As a result of the 1st year growth survey, there was no significant difference between NT and CF in the case of shoot length, but MF×1 and MF×2 were significantly decreased compared to NT. Root length was not significantly different in all treatment groups. As for the leaf number, there was no significant difference between NT and MF×1, but CF and MF×2 were significantly decreased compared to NT. In fresh weight, MF×1 and MF×2 were significantly decreased compared to NT, and in the case of dry weight, there was no significant difference between NT, MF×1, and MF×2. As a result of the 2nd year growth survey, there was a significant difference in CF and MF×2 in leaf number, but there was no significant difference in all treatment groups with respect to shoot length, root length, fresh weight, and dry weight. Through continuous additional research, it is necessary to confirm the change in soil composition and the growth of crops due to food waste fertilizer treatment.

  • PDF

Appropriate Technologies for Municipal Solid Waste Management in Bantayan Island, Philippines

  • Yu, Kwang Sun;Thriveni, Thenepalli;Jang, Changsun;Whan, Ahn Ji
    • 에너지공학
    • /
    • 제26권1호
    • /
    • pp.54-61
    • /
    • 2017
  • In general, solid waste arises from lots of human activities such as domestic, agricultural, industrial, commercial, waste water treatment, construction, and mining activities etc. If the waste is not properly disposal and treated, it will have a negative impact to the environment, and hygienic conditions in urban areas and pollute the air with greenhouse gases (GHG), ground water, as well as the soil and crops. In this paper, the Carbon Resources Recycling Appropriate Technology Center feasibility studies are reported at Bantayan Island, Philippines on the municipal solid waste management. The present objective of our study is to characterize the municipal solid waste incineration (MSWI) bottom ash and case study of MSWI production status in Bantayan, Philippines. Currently, wide variety of smart technologies available for MSWI management in developed countries. Recycling is the other major alternative process for MSWI landfill issues. In this paper, the feasibility studies of applied appropriate technologies for the municipal solid waste generation in Bantayan Island, Philippines are reported.

가축분뇨와 간척지 사료작물의 메탄발생량과 생분해도 (Biochemical Methane Potential and Biodegradability of Animal Manure and Cultivated Forage Crops at the Reclaimed Tideland)

  • 허남효;이승헌;김병기
    • 신재생에너지
    • /
    • 제4권4호
    • /
    • pp.56-64
    • /
    • 2008
  • Anaerobic biodegradability (AB), which can be determined with the ultimate methane yield by the decomposition of organic materials, is one of the important parameters for the design and the operation of anaerobic digestion plant. In this study, Biochemical methane potential (BMP) test has been carried out to evaluate the methane yields of animal manures such as pig and cattle slurries, and different forage crops cultivated at the reclaimed tideland such as maize, sorghum, barley, rye, Italian ryegrass (IRG), rape, rush, and waste sludge produced from slaughterhouse wastewater treatment plant (SSWTP). In the ultimate methane yield and biodegradability of animal manure, those of pig slurry were 345 $mlCH_4/gVS_{fed}$ and 44.7% higher than 247 $mlCH_4/gVS_{fed}$ and 46.4% of cattle slurry (Cat. 2). The ultimate methane yield and biodegradability of spike-crop rye (Rye 1) were 442.36 $mlCH_4/gVS_{fed}$ and 86.5% the highest among different forage crops, those of the other forage crops ranged from 306.6 to 379 $mlCH_4/gVS_{fed}$ of methane yield with the AB having the range of about 60 to 77%. Therefore the forage crops could be used as a good substrate to increase the methane production and to improve the biodegradability in anaerobic co-digestion together with animal manure.

  • PDF

동진 금·은·동 광산 주변에 방치된 폐석의 환경적 영향 (Environmental Impacts of the Waste Rump in the Dongjin Gold-Silver-Copper Mine)

  • 이무성;전서령;나춘기;정재일
    • 자원환경지질
    • /
    • 제29권1호
    • /
    • pp.45-55
    • /
    • 1996
  • Although the Dongjin Au-Ag-Cu mine had been abandoned since about forty years ago, the results of this study on the dispersion patterns and contamination level of heavy metals in the hydrologic system flowing via the waste rump show that the environmental impacts from the mine wastes are still significant. The stream water in the vicinity of the waste rump is severely acidified (pH 3.8 to 4.4) and highly enriched in various dissolved heavy metals. The heavy metal contents of the stream water and stream sediments are systematically attenuated with increasing distance from the mine area. However, it is worth to note that continuous attenuation of heavy metal contents in both media were reenriched in downstream area more than 800 m apart from the mine because it can be acted as a secondary source of heavy metal pollution. The heavy metals, especially Cd, Cu and Zn of polluted downstream sediments mainly occur in Fe-Mn oxides and organic materials, which indicates that these elements are the main pollutants from the waste rump of the Dongjin mine. The heavy metal contents of crops, such as sesame, perilla, red Pepper and brown rice, collected from the polluted farm land in the downstream area are lower than those of land plants from stream sides, but significantly higher in Cd, Cr, Cu and Zn than those from the unpolluted farm land. Especially, almost all of the crops in polluted farm land have been severly contaminated by Cd (>0.4 ppm). On the other hand, the heavy metal contents of the crops collected from refreshed farm land by means of a soil addition method shows significantly lowered level comparing with those of polluted area, which indicates that a soil addition method was effective for the refreshment of polluted farm land by toxic metallic pollutants. Wormwoods from this area showed very high contents in a11 the heavy metals even in unpolluted area (Cd > 1 ppm, Cr > 1 ppm, Cu > 11 ppm, Pb> 4 ppm, Zn > 55 ppm), indicating that a special caution must be payed when one takes ingest them.

  • PDF

A Transdisciplinary Approach for Water Pollution Control: Case Studies on Application of Natural Systems

  • Polprasert, Chongrak;Liamlaem, Warunsak
    • Environmental Engineering Research
    • /
    • 제19권3호
    • /
    • pp.185-195
    • /
    • 2014
  • Despite the enormous technical and economic efforts to improve environmental conditions, currently about 40% of the global population (or 2 billion people) are still lack access to safe water supply and adequate sanitation facilities. Pollution problems and transmission of water- related diseases will continue to proliferate. The rapid population growth and industrialization will lead to a reduction of arable land, thus exacerbating the food shortage problems and threatening environmental sustainability. Natural systems in this context are a transdisciplinary approach which employs the activities of microbes, soil and/or plants in waste stabilisation and resource recovery without the aid of mechanical or energy-intensive equipments. Examples of these natural systems are: waste stabilisation ponds, aquatic weed ponds, constructed wetlands and land treatment processes. Although they require relatively large land areas, the natural systems could achieve a high degree of waste stabilisation and at the same time, yield potentials for waste recycling through the production of algal protein, fish, crops, and plant biomass. Because of the complex interactions occurring in the natural systems, the existing design procedures are based mainly on empirical or field experience approaches. An integrated kinetic model encompassing the activities of both suspended and biofilm bacteria and some important engineering parameters has been developed which could predict the organic matter degradation in the natural systems satisfactorily.

소각시설 여열을 이용한 대규모 시설원예 단지의 난방 시스템 적용 가능성 평가 (Utilization of Heat from Waste-Incineration Facility for Heating Large-Scale Horticultural Facilities)

  • 이재호;현인탁;이광호
    • 설비공학논문집
    • /
    • 제27권8호
    • /
    • pp.418-425
    • /
    • 2015
  • The Korean government plans to establish large-scale horticultural facilities using reclaimed land to improve the competitiveness of the national agricultural sector at the government level. One of the most significant corresponding problems is the ongoing dependence of these facilities on fossil fuel, whereby constant heating is necessary during the winter season to provide the necessary breeding conditions for greenhouse crops. In particular, high-level energy consumption is incurred from the use of heating-related coverings with large heat-transmission coefficients such as those composed of vinyl and glass. This study investigated the potential applicability of waste-incineration heat for use in large-scale horticultural facilities by evaluating the hot-water temperature, heat loss, and available greenhouse area as functions of the distance between the incineration facility and the greenhouse. In conclusion, waste-incineration heat from a HDPE pipe can heat a horticultural facility of 10 ha if the distance is less than 8 km.

농업잔재물 노천소각에 의한 대기오염물질 배출량 산출에 관한 연구 (A Study on Estimation of Air Pollutants Emission from Agricultural Waste Burning)

  • 김동영;최민애;한용희;박성규
    • 한국대기환경학회지
    • /
    • 제32권2호
    • /
    • pp.167-175
    • /
    • 2016
  • In this study, we estimate air pollutants emission from agricultural waste burning. We investigated activities related to agricultural waste burning such as crop burning rates, location, and time by region. The average crop burning rates per square meter farmland of fruits, pulses, barleys, cereals, vegetables, and special crops were $273.1g/m^2$, $105.7g/m^2$, $7.4g/m^2$, $121.0g/m^2$, $290.7g/m^2$, and $392.9g/m^2$, respectively. We estimated air pollutants emissions with pre-developed emission factors. The estimated air pollutant emission of agricultural biomass burning were CO 148,028 ton/year, $NO_x$ 5,220 ton/year, $SO_x$ 11 ton/year, VOC 59,767 ton/year, TSP 21,548 ton/year, $PM_{10}$ 8,909 ton/year, $PM_{2.5}$ 7,405 ton/year, and $NH_3$ 5 ton/year. When these results compared with the entire emissions of national inventory (CAPSS), CO, VOC, $PM_{10}$ account for about 17.8%, 6.2%, 6.7% of the total, respectively.