scholarly journals Anaerobic treatment of low-concentration waste water using natural zeolite as a carrier of anaerobic microorganisms.

1987 ◽  
Vol 16 (7) ◽  
pp. 502-507
Author(s):  
Yusho MIYAJI ◽  
Motoyuki YODA ◽  
Mikio KITAGAWA
Keyword(s):  
Waste Water ◽  
Natural Zeolite ◽  
Anaerobic Treatment ◽  
Low Concentration ◽  
Anaerobic Microorganisms

COPPER (Cu2+) REMOVAL FROM WATER USING NATURAL ZEOLITE FROM GEDANGSARI, GUNUNGKIDUL, YOGYAKARTA

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Wahyu Wilopo ◽  
Septiawan Nur Haryono ◽  
Doni Prakasa Eka Putra ◽  
I Wayan Warmada ◽  
Tsuyoshi Hirajima
Keyword(s):  
Waste Water ◽  
Economic Growth ◽  
Heavy Metals ◽  
Natural Zeolite ◽  
Adsorption Equilibrium ◽  
Waste Water Treatment ◽  
Batch Test ◽  
Maximum Capacity ◽  
Geological Materials ◽  
Langmuir Adsorption

Development of indusrialization and urbanization not only increase economic growth but also contribute to the environmental degradation, especially contamination of heavy metals in water. In other side, there are many geological materials have capability to immobilize heavy metals. Therefore, the objective of this research is to know the maximum capacity of natural zeolite from Trembono area, Gunung Kidul regency to immobilize copper (Cu2+) from water and to understand their mechanism. This experiment was carry out by a batch test. The result showed that the maximum capacity of zeolite to immobilize Cu (qmax) is 63,69 mmolCu/kg Zeolite according to Langmuir adsorption equilibrium model. In addition, the capability to immobilize Cu will increases due to decreasing the grain size. The result of this research can be used as an alternative for waste water treatment, especially Cu. Keywords: Removal, copper (Cu2+), natural zeolite, Langmuir isotherm

Volatile fatty acids production from anaerobic treatment of cassava waste water: effect of temperature and alkalinity

2015 ◽  
Vol 36 (20) ◽  
pp. 2637-2646 ◽  
Author(s):  
Salah Din Mahmud Hasan ◽  
Citieli Giongo ◽  
Mônica Lady Fiorese ◽  
Simone Damasceno Gomes ◽  
Tatiane Caroline Ferrari ◽  
...  
Keyword(s):  
Waste Water ◽  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Anaerobic Treatment ◽  
Effect Of Temperature ◽  
Water Effect ◽  
Cassava Waste

Application of the UASB-Reactor for Anaerobic Treatment of Paper and Board Mill Effluent

1985 ◽  
Vol 17 (1) ◽  
pp. 61-75 ◽  
Author(s):  
L H A Habets ◽  
J H Knelissen
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Energy Savings ◽  
Hydraulic Retention Time ◽  
Waste Water Treatment ◽  
Anaerobic Treatment ◽  
Raw Material ◽  
Uasb Reactor ◽  
Seed Sludge ◽  
Uasb Reactors

Within the holding of Bührmann-Tetterode NV, 7 Dutch paper and board mills are operating, all of them using mainly waste paper as raw material. While three of them completely closed their watercircuits, two other mills put into practice biological waste water treatment namely anaerobic and anaerobic/aerobic. Number 6 is realising an anaerobic plant this year and for number 7 research is still being carried out, dealing with several unfavourable aspects. In September 1981 research for anaerobic treatment (UASB reactors) was started. After good results had been achieved on laboratory scale (301), further investigations were started on semitechnical scale (50 m3). In both cases the anaerobic seed sludge granulated after a while and loadings up to 20 kg COD/m3.d could be handled. COD-removal was 70 per cent, even when the hydraulic retention time was only 2.5 hours. In April 1983 a 70 m3 practical scale UASB reactor was started up at the solid board mill of Ceres. In October 1983 a full scale plant was started up at Papierfabriek Roermond. This plant consists of a 1,000 m3 UASB reactor and a 70 m3 gasholder. It has been designed and constructed by Paques BV and is used for pretreatment of effluent, in order to reduce the loading of the activated sludge plant. Besides energy savings on the oxygen input, about 1 million m3/year of biogas is being generated and is used for steamproduction. Both plants are working satisfactorily. Investment costs appeared to be relatively low. At Ceres, pay-out time is 1.5 year, while at Papierfabriek Roermond waste water treatment is cheaper than before, although capacity is doubled.

Anaerobic treatment of low concentration waste water in an inverse fluidized bed reactor

2000 ◽  
Vol 41 (4-5) ◽  
pp. 245-251 ◽  
Author(s):  
P. Castilla ◽  
M. Meraz ◽  
O. Monroy ◽  
A. Noyola
Keyword(s):  
Fluidized Bed ◽  
Removal Efficiency ◽  
Suspended Solids ◽  
Municipal Wastewater ◽  
Specific Activity ◽  
Biomass Concentration ◽  
Fluidized Bed Reactor ◽  
Anaerobic Treatment ◽  
Low Concentration ◽  
Inverse Fluidized Bed

Low concentration synthetic and municipal wastewaters were treated at HRT as short as 3 and 0.6 h respectively in an anaerobic inverse fluidized bed. Both bioreactors showed gas hold up due to the liquid downflow pattern of the prototype. The bioreactor operated at 3 h had a removal efficiency of 83%, specific activity of 4.5 kg CODremoved/kg IVS (d and the gas hold up varied from 23 to 55%. The reactor treating municipal wastewater had a removal efficiency of 44% when operating at 0.6 h, the specific activity was 4.2 kg CODremoved/kg IVS (d and no biogas was detected apparently because an important fraction was dissolved in the liquid phase. The biomass concentration was 13.8 and 1.1 kg IVS/m3 for synthetic and municipal wastewater and the SEM microphotographs showed a bacterial diversity for the first run and only cocci cells for the second run. The system does not remove suspended solids, so a polishing postreatment to improve water quality has to be implemented.

ETHANOL AS THE PRIMARY ATTRACTANT FOR THE AMBROSIA BEETLE TRYPODENDRON LINEATUM (COLEOPTERA: SCOLYTIDAE)

1970 ◽  
Vol 102 (8) ◽  
pp. 985-995 ◽  
Author(s):  
Henry A. Moeck
Keyword(s):  
Anaerobic Treatment ◽  
Ambrosia Beetle ◽  
Repellent Effect ◽  
Trypodendron Lineatum ◽  
Low Concentration ◽  
Laboratory Bioassays

AbstractMethanol, acetaldehyde, and ethanol have been identified in extracts of attractive wood and bark. The attractancy induced by anaerobic treatment in both sapwood and phloem of conifers and broadleaf trees was characterized by ethanol as the most concentrated component. In laboratory bioassays, ethanol was attractive at low concentration to both sexes of Trypodendron lineatum (Olivier). Methanol and acetaldehyde, at the concentrations found, apparently play no role in attraction. Monoterpenes had a repellent effect on T. lineatum.

Design Operation and Economy of Anaerobic Treatment

1983 ◽  
Vol 15 (8-9) ◽  
pp. 177-195 ◽  
Author(s):  
G Lettinga ◽  
S W Hobma ◽  
L W Hulshoff Pol ◽  
W de Zeeuw ◽  
P de Jong ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Anaerobic Treatment ◽  
High Rate ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Water Treatment Process ◽  
Filter Process ◽  
Anaerobic Sludge Blanket

This paper aims to contribute to the assesment of a (more) optimal design and operation of a high rate anaerobic waste water treatment process. The discussion will be made on basis of available information of modern anaerobic waste water treatment processes, such as the Anaerobic Filter Process and the Upflow Anaerobic Sludge Blanket process and of recently introduced Attached Film processes.

scholarly journals Kinetic assessment of the anaerobic treatment of piggery wastewaters using an EGSB reactor with Cuban natural zeolite

2021 ◽  
Author(s):  
Tania Pérez-Pérez ◽  
Arletty Funcada-Martínez ◽  
Ania Cabrera-Díaz ◽  
Luis E. Guerra-Díaz ◽  
Deny Oliva-Merencio ◽  
...  
Keyword(s):  
Natural Zeolite ◽  
Anaerobic Treatment ◽  
Kinetic Assessment

scholarly journals Détermination de la charge polluante et nature des déchets dans les chais d'élaboration des vins

OENO One ◽  
1986 ◽  
Vol 20 (2) ◽  
pp. 107
Author(s):  
Ildefonso Caro Pina ◽  
Diego Sales Márquez ◽  
Manuel José Valcárcel Muñoz ◽  
Luis Pérez Rodriguez
Keyword(s):  
Waste Water ◽  
Water Pollution ◽  
Food Processing ◽  
Waste Waters ◽  
Low Concentration ◽  
Different Parts

<p style="text-align: justify;">On suit, pendant une campagne, dans différents secteurs d'un chai de la zone de JEREZ, l'évolution de la charge polluante des rejets.</p><p style="text-align: justify;">Les eaux résiduaires ne diffèrent que très légèrement de celles d'autres chais. Les taux maxima de pouvoir contaminant se situent pendant les vendanges et le processus de stabilisation par le froid.</p><p style="text-align: justify;">Par rapport à d'autres industries du secteur agro-alimentaire, la charge contaminante des déchets des chais d'élaboration des vins est faible. Un recyclage des rejets est impossible du fait de leur faible concentration et de l'irrégularité avec laquelle ils sont produits.</p><p style="text-align: justify;">+++</p><p style="text-align: justify;">During a complete season, for different parts of a cellar in JEREZ area, the evolution of waste water pollution has been observed.</p><p style="text-align: justify;">Waste water is only slightly different from the ones coming from other cellars. Maximum contamination occurs during harvest and cold stabilisation.</p><p style="text-align: justify;">Compared to other food processing industries, cellar waste contamination is low. A recycling of those waste waters is impossible due to their low concentration and irregular production.</p>

scholarly journals Analisa Kualitas dan Kuantitas Biogas dari Kotoran Ternak

2011 ◽  
Vol 1 (2) ◽  
Author(s):  
Made Mara ◽  
Ida Bagus Alit
Keyword(s):  
Waste Water ◽  
Energy Source ◽  
Fossil Fuels ◽  
Waste Water Treatment ◽  
Anaerobic Treatment ◽  
Cow Dung ◽  
Alternative Source ◽  
Water Composition ◽  
Animal Dung ◽  
Buffalo Dung

Our life is completely dependent on a reliable and adequate supply of energy. In other to reduce dependence on fossil fuels, the use of animal dung in producing a renewable alternative source of energy has been proved using cow dung. Concerns over the environment and the rising costs for energy and waste water treatment have caused a resurgence of interest in anaerobic treatment and subsequent use of the biogas produced during this treatment of organic wastes as fuel. Biogas from manure wastes has become a potential renewable energy source for both domestic and commercial usage especially in West Nusa Tenggara. This study aims to investagate the quality and quantity of biogas produced from animal dung. The Cows, buffaloes and horses dung were used in this research using anaerobic biotank proses. The animal dungs were digested in ambient temperature and the water composition of degester was also analysed. The result shows that total volume of biogas produced by horse dung is 577.735 liters, and then cow dung is 373.839 liters, and the smallest production generated by buffalo dung which is 352.975 liters. Moreover, biogas from horse dungs generated the highest power of combustion, followed by cow dung, and buffalo dung, 732,425 watt, 556,521 watt 539,759 watt resfectively.

Sign in / Sign up

Export Citation Format

Share Document