A STUDY OF SOLUTIONS TO PREVENT THE EROSION OF THE MOSS GROWING ON ARCHITECTURES OF HUE IMPERIAL CITADEL

Background: The erosion of mosses on the surface of Hue imperial citadel has caused a lot of harm and is currently an urgent problem to be solved. Objectives:1. Identifying some moss species growing on Hue relics. 2. Determining the cause of slipperiness and the living environment mosses. 3. Finding a solution to limit the intrusion of the mosses. Methods: The methods are: identifying scientific name by comparing patterns, identify mucus, pH measurement and evaluation of the effects of certain chemicals on the growth of mosses in the laboratory. Result: The moss species that develop popularly in Hue relics is Funaria hygrometrica, Bryum apiculatum, Trichostomum orthodontum, Fissidens lycopodioides. Funaria hygrometrica is the most popular moss. The cause of the slipperiness is mucus in moss cells released outside the moss after death. Mosses grow well in moist environments, clear and slightly acidic surface. After two days assessing the effect of citric acid 18%, 15%, 10% and 7% NaHCO3, 5%, 3% on the growth of moss, the mosses all died completely. Since then identified two types of chemicals have been found to completely dead moss, inexpensive, environmentally friendly and does not affect the surface of architectures are citric acid 10% solution and NaHCO3 3% solution. Keywords: The moss erosion, Funaria hygrometrica, mucus, citric acid, NaHCO3 Key words: The moss erosion, Funaria hygrometrica, mucus, citric acid, NaHCO 3

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CHANGES IN THE THERMAL STABILITY AND ACIDIC CHARACTERISTICS OF HYDROXY-Al-MONTMORILLONITE COMPLEXES FORMED IN THE PRESENCE OF CITRIC ACID

Canadian Journal of Soil Science ◽

10.4141/cjss85-055 ◽

1985 ◽

Vol 65 (3) ◽

pp. 519-522 ◽

Cited By ~ 7

Author(s):

TEE BOON GOH ◽

P. M. HUANG

Keyword(s):

Thermal Stability ◽

Citric Acid ◽

Organic Carbon ◽

Organic Acid ◽

Key Words ◽

Titratable Acidity ◽

Structural Water ◽

Molar Ratios ◽

Gradual Loss

The thermal stability and acidic characteristics of Al interlayered montmorillonite were affected by citric acid which was present during its formation. Perturbation to the formation of Al interlayers by citric acid resulted in more gradual loss of their structural water in the 430 °C to 520 °C region at initial citric acid/Al molar ratios of 0.1 and 0.5. The data clearly reveal that, besides hydroxy-Al polymers, hydroxy-Al-citrate complexes adsorbed on the surfaces of montmorillonite very substantially contribute to the total and third buffer range titratable acidity of the clay. Key words: Hydroxy-Al-citrate interlayers, smectite, organic acid, DTA, third buffer range, organic carbon

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DAMPAK POLUSI PARTIKEL DEBU DAN GAS KENDARAAN BERMOTOR PADA VOLUME DAN KAPASITAS PARU

JURNAL BIOMEDIK (JBM) ◽

10.35790/jbm.1.2.2009.814 ◽

2013 ◽

Vol 1 (2) ◽

Author(s):

Jehosua Sinolungan

Keyword(s):

Air Pollution ◽

Global Health ◽

Inner City ◽

Key Words ◽

Urban Environment ◽

Urban Areas ◽

Environmentally Friendly ◽

Dust Particles ◽

Key Words Air Pollution ◽

Negative Impacts

Abstract: The increasing number of vehicles which increase air pollution has negative impacts on global health, especially that of lung problems. Nowadays, people’s mobility is fast and variable, needing better and more environmentally friendly transportation, without neglecting the socio-economic aspect. These are the reasons to develop better and more environmentally related transportation facilities. By understanding air pollution mechanisms, and kinds of particles and pollutants from vehicles, we will appreciate and pay more attention to our environment, especially in urban areas. Collaboration among health and government related departments has to be improved to regulate the use of inner city vehicles, so that it can decrease lung problems. Key words: air pollution, transportation, dust particles, urban environment. Abstrak: Bertambahnya jumlah kendaraan bermotor seiring dengan bertambahnya polusi udara, dan menimbulkan masalah global, yang berdampak negatif antara lain masalah kesehatan paru. Mobilitas manusia semakin beragam sehingga diperlukan dukungan sistem transportasi yang makin baik pula serta akrab lingkungan, tanpa mengabaikan segi sosio-ekonomi. Oleh karena itu sistem transportasi ini perlu dikembangkan menjadi sistem transportasi yang berkelanjutan. Diharapkan dengan mengetahui batasan polusi udara, jenis, serta dampak partikel debu dan gas kendaraan bermotor bagi kesehatan manusia akan membuat kita lebih mencintai dan memperhatikan lingkugan hidup kita, khususnya sekitar perkotaan. Perana kerjasama lintas sektoral untuk mengatasi polusi partikel debu dan gas buangan perlu ditingkatkan Pengaturan kendaraan layak beroperasi akan menekan mening-katnya kasus infeksi atau gangguan saluran napas. Kata kunci: polusi udara, transportasi, partikel debu, lingkungan perkotaan.

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IMPROVING STUDENT (SANTRI) CARE FOR THE LIVING ENVIRONMENT IN NURUL HUDA ISLAMIC BOARDING SCHOOL, DEPOK

JHSS (JOURNAL OF HUMANITIES AND SOCIAL STUDIES) ◽

10.33751/jhss.v4i1.1912 ◽

2020 ◽

Vol 4 (1) ◽

pp. 01-04

Author(s):

Sri Rahayu Pudjiastuti

Keyword(s):

Descriptive Analysis ◽

Secondary Data ◽

Environmentally Friendly ◽

Care Program ◽

Boarding School ◽

Living Environment ◽

Analysis Method ◽

Environmental Care ◽

Attitudes And Behaviors ◽

Overview Analysis

In general, santri (student) in islamic boarding school do not have clean habits. The habit that is actually throwing garbage in the river/sewer, someone else's yard, empty land, by burning it, or handing over garbage that has not been sorted out to the garbage officer/cleaning service. This study aims to provide an overview, analysis and recommendations (problem solving) about the need to strengthen environmental education (specifically about waste) to increase santri concern for the environment. This research method uses descriptive analysis method that is supported by secondary data and literature studies. The number of respondents 80 santri (santri). The results showed: environmental care programs can be realized well if supported by four basic elements namely; policies of environmentally friendly institutions, implementation of environment-based curriculum, participatory-based environmental activities, and management of environmentally friendly supporting facilities. The environmental care program is essentially the formation of attitudes and behaviors that are pro-environment, including waste management which applies the 3R principle (reuse, reduse, recycle) to reuse goods, reduce consumption on goods, and recycle items that are is not used anymore

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Citric acid, an environmentally friendly adhesive and wood impregnation material-review of research

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/593/1/012009 ◽

2019 ◽

Vol 593 ◽

pp. 012009 ◽

Cited By ~ 1

Author(s):

T D Cahyono ◽

Syahidah

Keyword(s):

Citric Acid ◽

Environmentally Friendly ◽

Wood Impregnation

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Introduction of research on sustainable and environmentally friendly wood-based materials

Impact ◽

10.21820/23987073.2020.4.73 ◽

2020 ◽

Vol 2020 (4) ◽

pp. 73-75

Author(s):

Kenji Umemura

Keyword(s):

Citric Acid ◽

Lignocellulosic Biomass ◽

Carbon Fixation ◽

Environmentally Friendly ◽

Agricultural Wastes ◽

The Other ◽

Raw Material ◽

Simple Preparation ◽

Global Issue ◽

Sustainable Materials

Wood-based materials are used for construction and furniture etc. The demand is expected to increase due to population growth and economic development. Wood-based materials are considered as sustainable material because wood is the main raw material. However, adhesives are indispensable when manufacturing those, and almost wood adhesives are made from chemicals derived from fossil resources. In recent years, breaking away from dependence on fossil resources has become an important global issue. One of the purposes of this work is to develop bio-based adhesives with simple preparation, low dependence of fossil resources and high adhesiveness. Novel bio-based adhesives using citric acid and/or sucrose are being researched. On the other hand, considering significant decrease of global forest area, alternative raw components for wood-based materials is desperately needed in the future. Un-utilized lignocellulosic biomass such as agricultural wastes would be promising for these. The utilization of agricultural wastes also contributes to carbon fixation of lignocellulosic biomass. Now, researchers at the Laboratory of Sustainable Materials are interested in developing new wood-based materials that combine agricultural wastes with bio-based adhesives. These efforts will make wood-based materials more sustainable and environmentally friendly.

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Extraordinary Educative Environmental Events

Journal of Management and Sustainability ◽

10.5539/jms.v9n1p101 ◽

2019 ◽

Vol 9 (1) ◽

pp. 101

Author(s):

Ming Kwan ◽

Anthony Kong ◽

David Liu

Keyword(s):

Sustainable Development ◽

Environmental Protection ◽

Public Transportation ◽

Moral Obligation ◽

Environmental Behavior ◽

Environmental Awareness ◽

Environmentally Friendly ◽

Living Environment ◽

Property Management ◽

Estate Management

Using educative environmental protection events such as “Environmental Protection Pioneer Campaign”, “Rewarding Recycling Campaign”, “Green Efforts Give Great Rewards Event”, “Environmental Protection Workshop”, “Environmental Campaign Day”, “Environmental Protection Carnival” and “Second-hand Bazaar” held in Park Island, Hong Kong, as a case study, the purpose is exploring how educative environmental protection events contribute to demonstrate environmentally friendly property management and raise the environmental protection awareness and encourage residents’ involvement to live green. Design/Methodology/Approach—This paper identifies environmental protection events as an effective strategy to raise environmental awareness for all of the estate residents. The objectives of environmental protection events aimat showing the importance of community involvement, demonstrating educative environmentally friendly property management and encourage residents to live green. Authors conducted twenty-five in-depth semi-structured interviews with participants so as to fully understand the contributions made by the events. Findings—Educative environmental protection events were perceived by all of the study participants as effective and educative events, which raised environmental awareness, upheld moral obligation to engage in environmental protection, and induced greater pro-environmental behavior to sustainability. Based on the results, the framework of 10 Cs is revealed which contributes to environmentally friendly environment for the next generation. These contributions are: 1) Circulating surplus materials to the needy 2) Choosing public transportation 3) Committing to green education 4) Cultivating pro-environmental behavior 5) Caring for sustainable development 6) Cutting Carbon lifestyle 7) Coordinating efforts to reduce, reuse, and recycle 8) Consuming less electricity 9) Concerning ocean creatures protection 10) Ceasing ozone depleting chemicals products Practical implications—Based on the insights gained from participants, the 10 Cs contributions are made by educative environmental protection events for nurturing moral obligation to demonstrate environmentally friendly property management and raise the environmental protection awareness and encourage residents’ involvement to live green. Participants should take part in all environmental-protection measures daily. The Estate Management Company and government should deepen cooperation in environmental protection, intensify ecological preservation and build a green living environment. Originality/value—This paper urges for the importance of all residents, all estate management companies and government to engage in environmental protection for sustainable development. The aim of such an episode is to arouse all stakeholders to participate in environmental protection actively and attentively for green environment.

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Nanostructured WO3 photoanodes for efficient water splitting via anodisation in citric acid

RSC Advances ◽

10.1039/c7ra05342h ◽

2017 ◽

Vol 7 (56) ◽

pp. 35221-35227 ◽

Cited By ~ 14

Author(s):

Jifang Zhang ◽

Ivette Salles ◽

Sam Pering ◽

Petra J. Cameron ◽

Davide Mattia ◽

...

Keyword(s):

Citric Acid ◽

Water Splitting ◽

Environmentally Friendly ◽

Solar Water ◽

Solar Water Splitting ◽

First Time

We report the production of nanostructured WO3 photoanodes for solar water splitting produced via anodisation using for the first time citric acid, a safer and more environmentally friendly alternative to fluoride-based electrolytes.

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Effect of Rice Husk Ash Silica as Cement Replacement for Making Construction Mortar

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.775.624 ◽

2018 ◽

Vol 775 ◽

pp. 624-629

Author(s):

Kantapong Boontawee ◽

Withit Pansuk ◽

Luangvaranunt Tachai ◽

Katsuyoshi Kondoh

Keyword(s):

Compressive Strength ◽

Citric Acid ◽

Rice Husk ◽

Compression Strength ◽

Rice Husk Ash ◽

Environmentally Friendly ◽

Carbon Residue ◽

Cement Replacement ◽

A Value ◽

Treated Carbon

Rice husk ash (RHA) is used as a replacement to cement to produce mortar. The effect of 5, 10, and 15wt% addition to the density and compressive strength of mortar is investigated. It was found that with the increasing addition of RHA causes the decrease of compressive strength and density of mortars. Compressive strength of mortar drops with addition of RHA, from a value of 42 MPa of no RHA addition, to 24 MPa of 15wt% RHA addition. Reduction in compression strength may be due to the decrease in density, which arises from porous RHA. This is more dominant in mortar made from addition of RHA without prior acid treated. Carbon residue and impurity in RHA further reduce the compressive strength of mortar. In addition, this research validate the use of a more environmentally friendly citric acid for partially removal of oxide impurities prior to burning the rice husk.

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