• Title/Summary/Keyword: Pilot Scale Test

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Study on the Treatment Performance of SCB-M with Swine Manure (SCB-M의 돈분 처리 성능에 관한 연구)

  • Park, Jong Tae;Kim, Sang Hun
    • Journal of Biosystems Engineering
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    • v.37 no.6
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    • pp.365-372
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    • 2012
  • Purpose: Performance of slurry composting and biofiltration with methane production (SCB-M) using swine manure and sawdust was evaluated. The suitable specific liquid input (SLI) was determined at lab-scale SCB. Method: In lab-scale SCB, the SLI test was performed at liquid input rate of 0.04, 0.09, $0.17cc/cm^3$ with constant sawdust volume. In pilot-scale SCB-M, the swine manure was fed to methane digester at organic loading rate (OLR) of 0.25-0.5 g VS/L/d. The effluent from methane digester was filtered using SCB. Results: The SLI at $0.04cc/cm^3$ showed good performance in terms of retention time. In pilot-scale SCB, the removal of $NH_3$-N and total nitrogen (T-N) was found to be around 59% and 28%, respectively. Similarly, volatile fatty acid (VFA) and total chemical oxygen demand (TCOD) removal was found be 56% and 43%, respectively. Conclusions: For SCB-M process, the SLI of $0.04cc/cm^3$ is recommended. The performance of swine manure treatment was improved more by using SCB-M system than using methane digester only.

Factor Analysis of Type I Osteoporosis and Evaluation on Tuna Bone Powder Compounds through Small Scale Pilot Study (I형 골다공증의 요인분석과 다랑어골분 복합제제의 pilot study를 통한 평가)

  • Chi Gyoo Yang;Kim Young Man
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.93-100
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    • 2004
  • This study was carried out for analyzing pathological and epidemiological factors of osteoporosis and doing pilot test using trial compounds of tuna bone and oriental herbs based on the factors. Osteoporosis is originated from osteoblast, osteoclast, organic and inorganic factors etc. Therefore the pathology of osteoporosis is not simple because the cytokine, growth factors and hormones of the components are various a lot. Taking a view of epidemiological factors of type I osteoporosis, ageㆍmenarcheㆍcholesterolㆍBMI etc. have definite relation to them. So we can approach to aging or consumptive disease in oriental medicine, specifically differential diagnosis of blood depletion with deficiency of qi, deficiency of kidney, deficiency of yin, bony weakness etc. And it should be considered together with rules for maintaining good health or habit concomitantly. Therefore IL1ㆍ6 or TNF αㆍβ are generally used as molecular biological index for osteoblast and osteoclast because the most important index is bone mineral density and strength, but the factors like collagen and noncollagen protein must be accounted as biomarkers. Trial compounds generally showed favorable effects on accompanying subjective symptoms of osteoporosis in the pilot test for menopausal woman. But if she didn't have specific symptoms of osteoporosis there wasn't any specific change. And osteocalcin was increased in case of being under standard level, but wasn't changed in case of normal level. Therefore these trial compounds can be used as a funcdonal diet for type I osteoporotic patients or preventive measures.

Changes in Gait Patterns after Physical Therapy in Patients with Non-specific Chronic Low Back Pain: a Pilot Study

  • Song, Seonghyeok;Cho, Namjeong;Kim, Hyun-Joong
    • Physical Therapy Rehabilitation Science
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    • v.11 no.1
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    • pp.105-112
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    • 2022
  • Objective: Nonspecific low back pain (NS-LBP) causes pain and disability, affecting the neuromuscular system and altering gait patterns. The purpose of this study is to investigate the effect of improvement of low back pain symptoms through physical therapy on foot pressure and spatiotemporal gait parameters. Design: A pilot study. Methods: Participants received manual therapy and supervised therapeutic exercise, which consisted of 12 sessions for 6 weeks. Participants were assessed for pain intensity (a numeric pain rating scale), disability index (oswestry disability index), and spatiotemporal gait parameters before and after intervention. Wilcoxon signed rank test was used to analyze the before-and-after differences in a single group. Results: All seven NS-LBP patients completed the study without dropout. After six weeks of physical therapy, the numeric pain rating scale and oswestry disability index showed significant improvement (Z= -2.388, P=0.017). There was no significant improvement in both static and dynamic conditions in foot pressure (P>0.05). However, in the spatiotemporal gait parameters, there were significant differences in all variables except the right stance phase and left mid stance (P<0.05). Conclusions: In our pilot study, 12 sessions of physical therapy in NS-LBP patients improved gait quilty in spatiotemporal gait parameters. Similarly, it has resulted in clinically positive improvements in pain and disability.

Bipolar Membranes and Their Applications

  • Strathmann, H.
    • Membrane Journal
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    • v.11 no.3
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    • pp.97-108
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    • 2001
  • Bipolar membranes have gained increasing interest as a tool for an efficient production of acids and bases from the corresponding salts. A large number of potential applications have been identified in the chemical and biochemical industry have been identified and evaluated on a laboratory scale. In spite of extensive research efforts and laboratory and pilot plat test, there are hardly any large-scale commercial plants. In this paper the basic concept of the electrodialytic water dissociation with bipolar membranes are briefly reviewed. The limitations of today\`s bipolar membranes are indicated. Selected examples of successful applications of the bipolar membrane technology are discussed.

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Recycling Technology of Waste Product in Electro Galvanizing Line of Steel Company

  • Lee, Jae-Young;Lee, H. H.;Kim, D. Y.;J. G. Sohn
    • Proceedings of the IEEK Conference
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    • 2001.10a
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    • pp.281-285
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    • 2001
  • This technology Provides an economical Production of high value added goods applicable to electro chemicals by recycling of waste products in EGL(Electro Galvanizing Line). The waste products produced in EGL contain potassium chloride (KCI), nickel and zinc. Highly pure KCI and Zinc Chloride which are raw material of electro plating, can be produced by the development of the recycling process. The scope of this study ranges from laboratory experiments to pilot test in plant. We have developed the whole process of recycling technology such as purification method of waste products, fabrication methods of electro chemicals, basic design of plant, pilot scale production and evaluation of pilot goods, Developed electro chemicals were pure enough to satisfy the specification of steel company.

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복합오염물질 처리를 위한 Hybrid PRB System

  • 김상태;강완협;문희선;민지은;조종수;박주양;김재영;박재우
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2004.09a
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    • pp.129-132
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    • 2004
  • A hybrid permeable reactive barriers(hybrid PRBs) composed of Fe(II) PRB, biological PRB and sorptive PRB was investigated to treat groundwater with multiple contaminations. We performed batch, column and pilot tests to determine removal rates and design parameters of each PRB media, and operated two hybrid PRB systems with pilot-scale barriers in series. The pilot test of the hybrid PRB system with the combination of Fe(II), biological media and black shale showed multiple contaminations could be removed in ground water. Nitrate could be treated below 20 mg/L and Cr(VI) was treated down to 0.05 mg/L. TCE was degraded below 0.001 mg/L in system. The hybrid PRB system with a proper combination of PRBs could remediate ground water with multiple contaminations.

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Large-scale pilot test study on bearing capacity of sea-crossing bridge main pier pile foundations

  • Zhang, Xuefeng;Li, Qingning;Ma, Ye;Zhang, Xiaojiang;Yang, Shizhao
    • Geomechanics and Engineering
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    • v.7 no.2
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    • pp.201-212
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    • 2014
  • Due to the sea-crossing bridge span is generally large and main pier pile foundations are located in deep water and carry large vertical load, sea-crossing bridge main pier pile foundations bearing mechanism and load deformation characteristics are still vague. Authors studied the vertical bearing properties of sea-crossing bridge main pier pile foundations through pilot load tests. Large tonnage load test of Qingdao Bay Bridge main pier pile program is designed by using per-stressed technique to optimize the design of anchor pile reaction beam system. Test results show that the design is feasible and effective. This method can directly test bearing capacity of main pier pile foundations, and analysis bearing behaviors from test results of sensors which embedded in the pile. Through test study the vertical bearing properties of main pier pile foundation and compared with the generally short pile, author summarized the main pier pile foundations vertical bearing capacity and the main problem of design and construction which need to pay attention, and provide a reliable basis and experience for sea-crossing bridge main pier pile foundations design and construction.

Pilot Scale Test of Non-woven Fabric Filter Separation Activated Sludge Process for Practical Application on Domestic Wastewater Reclamation (파일럿 규모의 침지식 부직포 여재 활성슬러지 공정의 시스템 처리 특성에 관한 연구)

  • Lee, Sang-Woo;Choi, Chul-hoi;Park, Young-mi;Seo, Gyu-Tae
    • Journal of Korean Society of Water and Wastewater
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    • v.20 no.2
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    • pp.289-294
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    • 2006
  • A pilot scale non-woven fabric filter separation activated sludge system was investigated for practical application on domestic wastewater reclamation and reuse. The system was operated in A/O (Anaerobic/Oxic) process with submerged filter module in the aerobic compartment. In the test of two types of filter materials ($70g/m^2$ and $35g/m^2$), the initial flux (0.42m/d) could be maintained for about three months by regular air backwashing of $70g/m^2$ filter at 0.3m water head. The removal efficiency of organic matter by the system was BOD 93.3%, CODcr 96.3%, SS 96.7%. The effluent quality was 7.8mg/L, 12mg/L and 5mg/L for BOD, CODcr and SS, respectively. The water quality was enough to meet a standard for domestic reuse without human contact. T-N removal efficiency was 49.9% at internal recycle rate 2Q and C/N ratio 3.3. The removal efficiency of T-P was 50% with average effluent concentration, 2.6mg/L.

A Study on Comparison of Responses to Short Form Sasang Classification Questionnaire for American (SF_SSCQ-A) : Pilot test (미국인용 체질진단지에 의한 체질별 응답차이에 따른 문항 분석:Pilot test)

  • Lee, Eui-Ju;Yoo, Jung-Hee
    • Journal of Sasang Constitutional Medicine
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    • v.21 no.1
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    • pp.63-78
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    • 2009
  • 1. Purpose This study has focused on response rates of the questionnaire which considered as a basic data to identify constitution for American. 2. Methods By analysing the tendency of the respondents who has defined constitution by clinical diagnosis and comparing of their answers, the result of their constitution analysis by our questionnaire were re-examed. The answer of each question to each constitution were tested how it is relevent to a scale of a constitution. Each item response rate on SF_SSCQ-A was analysed about those who had been tested and diagnosed as Taeyangin, Soyangin, Taeeumin, Soeumin respectively. 3. Results There were the 55 significant items; 13 Taeyangin items, 13 Soyangin items, 20 Taeeumin items, 9 Soeumin items. However, there were the 11 low response rate items (below 10 %) and 4 no response items.

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Recovery of Iron-Nickel Alloy Etching Waste Solution in Pilot Scale (파일럿 규모에서 철-니켈 합금 에칭폐액 재생)

  • Chae, Byungman;Kim, Dae-Weon;Hwang, Sung-Ok;Kim, Deukhyeon;Lee, Sangwoo
    • Clean Technology
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    • v.23 no.4
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    • pp.393-400
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    • 2017
  • In this study, we have developed a process for separating and recovering Ni and Fe in solution through a new solvent instead of TBP and Alamine336, which are solvents used in the conventional solvent extraction method. Experimental conditions were optimized through lab test and a $10L\;h^{-1}$ pilot plant was constructed for commercialization. In addition, the process data for mass production were obtained through pilot experiment and it was confirmed that there is no problem in product quality that can be used through the corrosion test of ferric chloride.