2013 December JAPAN TAPPI JOURNAL
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Vol.67, No.12 Abstracts


Relationship between Paper and our Environment
-Aiming to the Noble Use of Woods-

Keiichi Nakamata
Environmental Management Division, Hokuetsu Kishu Paper Co., Ltd.

  Paper is a material that supports our life and culture. The raw materials of paper are woods which are known for sustainable resources. Paper making companies in Japan have constructed a system to verify the legality and sustainability in utilizing woods. Taking the example of hardwood, using the hardwood from Satoyama as pulp for paper making contributes to the conservation of Satoyama. In addition, the use of plantation hardwood from overseas has increased forest area and promoted local employment.
  Today, in order to activate the Japanese forests, it is necessary to increase the use of domestic woods. Japanese pulp and paper industry is the biggest forest-product industry in Japan, using about 40% of the domestic woods, and the forestry's base in Japan.


The Necessity of Continuous Measurement for Dust Concentration in Flue Gas in Paper Mill

Toshibumi Tanaka
Tanaka electric laboratory Co., Ltd.

  Dust density meter is not so popular but it will be becoming very important environmental instrument for CEMS in several industries such as paper mill.
  We explain the necessity of dust density meter for paper mill facilities by existing model DDM-2001 and under developing new model for wet flue gas from FGD.


Fine Particulate Matter (PM2.5)
-Generation and Control-

Kazuhiko Sakamoto
Center for Environmental Science in Saitama

  Ambient fine particulate matter (PM2.5) has an adverse effect not only on human health such as increase in the death rate, but also on quality of life by deteriorating level of visibility and spoiling scenery. An air quality standard for PM2.5 with diameter less than 2.5 µm has been newly constituted in September 2009 in Japan. Although PM2.5 concentration has been steadily decreasing, achievement of its air quality standard is not easy especially in urban area. PM2.5 consists mainly of primary particles emitted from various combustion sources and secondary particles generated from gaseous precursors in the atmosphere. In this report, the current state of PM2.5 in South-Kanto area and future researches required in order to reduce ambient PM2.5 concentration are described.


Evaluation and Countermeasure of the Low Frequnecy Noise Problem in a Factory

Masahiko Aoki
Acoustic Solution Division, Nittobo Acoustic Engineering Co., Ltd.

  At factory or plant, sometimes the low frequency noise, which has components less than 100Hz, becomes a serious problem together with the noise in ordinary frequency. It is known that the countermeasure of low frequency noise is more difficult than the noise in ordinary frequency. In this article, basic knowledge of the low frequency noise problem is summarized. Also the noise countermeasure techniques which are applicable for the low frequency noise problem are introduced.


Outline and Experience of Anaerobic Wastewater Treatment System

Atsushi Nakano
Research & Development Dept.,
Sumitomo Heavy Industries Environment Co., Ltd.

  Anaerobic wastewater treatment system can make energy from organic pollutants contained in wastewater. In granular sludge bed, anaerobic bacteria convert organic matters into biogas composed from methane and CO2 in anaerobic environment. Heat or electric power is produced from methane. And also this system can reduce energy consumption and running costs compared with activated sludge system.
  In this paper, basic mechanism of anaerobic digestion, and experiences of actual operation of anaerobic wastewater treatment system are described.


Recent Progress in Treatment of Low-Contaminated PCB Waste

Yo Osada
Japan Industrial Waste Management Foundation

  Electrical machinery, such as transformers or capacitors, being contaminated by small amount of PCB was found in 2002 in Japan. The number of the units is estimated as almost 1.6 million. To promote the appropriate treatment of the PCB waste, the Ministry of Environment implemented a certification system for businesses detoxifying the waste using sophisticated technologies from 2009. At present, 10 operators being certificated under the system and one operator approved by a local authority are treating the waste by firing.
  However, since the present capacity is still insufficient to the huge amount of the waste, effective measures are to be implemented to increase the facilities or to materialize new solutions like washing process.


Climate Change Mitigation Policy in East and Southeast Asia and Business Opportunities of Japanese Stakeholder in the Region

Yasuhiro Kasuya
Researcher, the Overseas Environmental Cooperation Center, Japan

  The present paper comparatively analyzes climate change mitigation policy and the implementation thereof in four East and Southeast Asian countries, namely, Mongolia, Cambodia, Lao PDR and Vietnam. The paper also discusses international support mechanisms for nationally appropriate mitigation actions (NAMAs), which developing countries are encouraged to develop and implement within the framework of the United Nations Framework Convention on Climate Change (UNFCCC). In this context, the paper analyzes business opportunities of Japanese companies in the region, possibly with the use of the Joint Crediting Mechanism (JCM) of the Government of Japan.


POD Business Growth in Social Media Arena

Harunori Sugita
Production Services Sales and Marketing
Fuji Xerox Co., Ltd.

  In the process of expanding Social Media Services in Japan, the value of POD services should be diversified into mainly two directions while retaining its basic concept gon demand time, on demand place and on demand volumeh
  The first direction should be super centralized POD services in line with Big Data management services expanding with SNS, in which POD services would be required highly integrated, seamless workflow with higher performance of inkjet or dry toner printing products.
  The second one should be super decentralized POD services supporting community building businesses increasing with SNS, in which POD services support the same contents and expressions rather than variable information by people. There should be increasing demand on handy and small size of POD systems not only in printing services sites but also office copier printers and public print services such as convenience stores or city halls.
  These two trends are important to view the future development of materials with POD and more spaces are existing to grow.
  In this seminar I also touch on what we call gimage recognition cloud sevicesh that connect paper value with SNS easily. Fuji Xerox has just released gSky Desk Media Switchh service which can connect virtual information such as home page or video clips with paper media through an image recognition service application uploaded into smart media terminals.


From Rag to Wood: The Review of the Technologies of Producing Pulp
from Wood (PartⅡ)

Kiyoaki Iida

Following the Part I, the development of sulfite pulp is reviewed. Though GP and alkaline pulp became available, rag pulp was still a main source for fine paper. Scientists and entrepreneurs were interested in sulfite process as an alternative, and research work was carried out worldwide in technologically developed countries like America, several European counties and England with frequent information exchanges among them. When the technology was commercially established, there was a case representing such operations in which a certain log producer in Canada bought the license and the technical support from England, imported lime and sulfur from Scotland and Spain respectively, exported his pulp to America and paid the royalty to England.
As sulfite pulp and GP were at hand, the amount of paper produced accelerated. The society, which was getting affluent after the industrial revolution, could afford to use it for exchanging information more efficiently, which further increased the demand of paper.
  The technology of producing those types of pulp developed since the mist of the 19th century surely contributed to the development of human culture in the successive generations..


Corporate Profile & Products Information (8)

SEIKO PMC CORPORATION

  SEIKO PMC CORPORATION was established in April 2003 by the merger of Japan PMC Corporation and Seiko Chemical Industries Co., Ltd., and produces paper making chemicals and resin products for inks and recording materials. Since the establishment, the two companies had been providing for Japanese paper or ink industries their indispensable materials by using their core technologies of emulsification, dispersion, and polymer synthesis. Since the merger, in addition to the above mentioned activities, we have established New business development division to explore new fields by applying our core technologies focusing on developing a) Electronics related and b) Renewable environmental-friendly materials. We also formed Overseas division to go into the rapidly emerging markets like China or South East Asia to get business chances.
  In this article, we would like to introduce our corporate profile as well as the technical trend and the recent development of paper making chemicals.


VINA KRAFT PAPER CO., LTD. - Operating Experiences in Vietnam

Atsuhito Yoshizaki
VINA KRAFT PAPER Co., Ltd.

  VINA KRAFT PAPER Co., Ltd. (hereinafter called VKPC) was incorporated in January 2007, and commenced commercial operation of the containerboard mill in April, 2009 near Ho Chi Minh City, Vietnam which has achieved sustainable economic growth. VKPC is a joint venture company between SCG Paper (Siam Cement Group), the biggest paper manufacturer in Thailand, and Rengo (Japan). VKPC, which is the biggest containerboard mill in Vietnam, produces linerboard and corrugating medium with one paper machine and has a capacity of 220,000 tons per year.
  This report describes economic situation in Vietnam, general information of VKPC, and its operating experiences.


A Calculation Method to Evaluate the Control Effect by PLS Regression Analysis
| How Should We Evaluate the Real Control Effect? |

Yoshitatsu Mori
Core Technology Laboratory, Oji Holdings Corporation

  In the pulp and paper manufacturing process, numbers of material properties and end product qualities are changing steadily with time. Therefore it is considerably difficult to judge the variance of the production cost or the improved effect etc. through the operation data properly and fairly, because of their disturbances, when they are so tiny amount.
  This paper describes a new method to evaluate the effect of the production cost and control effect etc. more accurately when a new control function was introduced or when process operation methods were changed for some purpose in the production processes.
  Here, as an example, a case of a pulp bleaching process was taken up.
  The proposed method is follows:
  At first, find out the reliable multiple linear regression equation by using statistic analysis PLS (Partial Least Squares) regression method, for example, between the production cost as dependent variable and some primary explaining variables relates to the bleaching process. As it is well known, because the PLS analysis result is superior to the common regression analysis by MLR (Multiple Linear Regression) method in the stability and reliability. Sometimes, the regression coefficients calculated by MLR are tending to be inappropriate by the effects of over fitting or their collinearity.
  Next, to get rid of the random variance and disturbance effects, correct and compensate the targeted gproduction costh appropriately by gapproximate linear correction methodh so as to equalize the manufacturing conditions and incoming and outgoing material properties, utilizing the regression coefficients that were obtained by PLS regression model in advance.
  As a result, it become possible to judge the control effect fairly and acceptably, even if the variance of the production cost is tiny change or the each explaining variablefs operating condition levels were changing intricately with each other.