Potensi Limbah Cair Batik sebagai Sumber Bioenergi (Studi Kasus di UKM Batik Blimbing Malang)

Batik merupakan salah satu produk kebanggaan bangsa Indonesia, yang umumnya diproduksi oleh usaha kecil menengah (UKM). Peningkatan permintaan batik mendorong adanya peningkatan jumlah UKM batik serta jumlah limbah cair batik yang dihasilkan. Masih banyak UKM batik yang membuang limbah cairnya langsung ke lingkungan yang berpotensi menimbulkan pencemaran pada tanah dan air. Hal ini disebabkan oleh belum adanya fasilitas pengolahan limbah yang memadai, sesuai dengan kondisi yang dialami oleh UKM Batik Blimbing Malang. Penelitian ini bertujuan untuk mengidentifikasi potensi pengolahan limbah cair batik secara anaerobik untuk memproduksi biogas sebagai sumber energi terbarukan. Pada penelitian ini digunakan teknologi anaerobic digestion yang dioperasikan secara batch dengan kondisi mesofilik (37 °C) tanpa pengadukan, dikenal sebagai uji biochemical methane potential (BMP) dengan waktu pengamatan selama 28 hari. Sampel yang diuji meliputi penambahan 100% limbah cair batik dengan berbagai variasi volume. Hasil penelitian menunjukkan bahwa limbah cair batik memiliki kandungan bahan pencemar organik yang tinggi, yaitu sebesar 8.651 mg/L (BOD) dan 54.700 mg/L (COD). Hasil uji BMP juga menunjukkan rendahnya biogas yang dapat diproduksi dari limbah cair batik. Kondisi ini disebabkan oleh beberapa faktor antara lain tingginya kandungan COD, ammonia, zat pewarna beracun, dan nisbah C/N yang berpengaruh negatif terhadap pertumbuhan mikroorganisme.

Biochemical Methane Potential of Cork Boiling Wastewater at Different Inoculum to Substrate Ratios

Applied Sciences ◽

10.3390/app11073064 ◽

2021 ◽

Vol 11 (7) ◽

pp. 3064

Author(s):

Roberta Mota-Panizio ◽

Manuel Jesús Hermoso-Orzáez ◽

Luis Carmo-Calado ◽

Gonçalo Lourinho ◽

Paulo Sérgio Duque de Brito

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Treatment Plant ◽

Organic Substrates ◽

Volatile Solids ◽

Working Volume ◽

Methane Potential ◽

Bmp Test ◽

Cork Industry

The present study evaluates the digestion of cork boiling wastewater (CBW) through a biochemical methane potential (BMP) test. BMP assays were carried out with a working volume of 600 mL at a constant mesophilic temperature (35 °C). The experiment bottles contained CBW and inoculum (digested sludge from a wastewater treatment plant (WWTP)), with a ratio of inoculum/substrate (Ino/CBW) of 1:1 and 2:1 on the basis of volatile solids (VSs); the codigestion with food waste (FW) had a ratio of 2/0.7:0.3 (Ino/CBW:FW) and the codigestion with cow manure (CM) had a ratio of 2/0.5:0.5 (Ino/CBW:CM). Biogas and methane production was proportional to the inoculum substrate ratio (ISR) used. BMP tests have proved to be valuable for inferring the adequacy of anaerobic digestion to treat wastewater from the cork industry. The results indicate that the biomethane potential of CBWs for Ino/CBW ratios 1:1 and 2:1 is very low compared to other organic substrates. For the codigestion tests, the test with the Ino/CBW:CM ratio of 2/0.7:0.3 showed better biomethane yields, being in the expected values. This demonstrated that it is possible to perform the anaerobic digestion (AD) of CBW using a cosubstrate to increase biogas production and biomethane and to improve the quality of the final digestate.

Enhancing Methane Production from Spring-Harvested Sargassum muticum

Springer Proceedings in Energy - Energy and Sustainable Futures ◽

10.1007/978-3-030-63916-7_15 ◽

2021 ◽

pp. 117-123

Author(s):

Supattra Maneein ◽

John J. Milledge ◽

Birthe V. Nielsen

Keyword(s):

Anaerobic Digestion ◽

Pharmaceutical Industry ◽

Brown Seaweed ◽

Sargassum Muticum ◽

Biofuel Production ◽

Seaweed Species ◽

Invasive Seaweed ◽

Methane Potential ◽

Aqueous Meoh

AbstractSargassum muticum is a brown seaweed which is invasive to Europe and currently treated as waste. The use of S. muticum for biofuel production by anaerobic digestion (AD) is limited by low methane (CH4) yields. This study compares the biochemical methane potential (BMP) of S. muticum treated in three different approaches: aqueous methanol (70% MeOH) treated, washed, and untreated. Aqueous MeOH treatment of spring-harvested S. muticum was found to increase CH4 production potential by almost 50% relative to the untreated biomass. The MeOH treatment possibly extracts AD inhibitors which could be high-value compounds for use in the pharmaceutical industry, showing potential for the development of a biorefinery approach; ultimately exploiting this invasive seaweed species.

Biochemical Methane Potential Analysis of Microalgae Substrates in Anaerobic Digestion Processes

10.14264/31cee42 ◽

2019 ◽

Author(s):

◽

Riley Buckley

Keyword(s):

Anaerobic Digestion ◽

Potential Analysis ◽

Anaerobic Digestion of Vegetable Wastes Using Biochemical Methane Potential Assays

Climate Change Management - Climate-Smart Technologies ◽

10.1007/978-3-642-37753-2_34 ◽

2013 ◽

pp. 447-458 ◽

Cited By ~ 1

Author(s):

Ackmez Mudhoo ◽

Romeela Mohee ◽

Zumar M. A. Bundhoo ◽

Dinesh Surroop

Keyword(s):

Anaerobic Digestion ◽

Vegetable Wastes ◽

Comparative evaluation of the biochemical methane potential of waste activated sludge acetic acid and cellulose substrates under mesophilic and thermophilic anaerobic digestion

SN Applied Sciences ◽

10.1007/s42452-020-03359-w ◽

2020 ◽

Vol 2 (9) ◽

Author(s):

Getachew Dagnew Gebreeyessus

Keyword(s):

Acetic Acid ◽

Anaerobic Digestion ◽

Activated Sludge ◽

Comparative Evaluation ◽

Waste Activated Sludge ◽

Thermophilic Anaerobic Digestion ◽

Cellulose Substrates ◽

A Novel Nitrogen Removal Technology Pre-Treating Chicken Manure, Prior to Anaerobic Digestion

Sustainability ◽

10.3390/su12187463 ◽

2020 ◽

Vol 12 (18) ◽

pp. 7463

Author(s):

Marie E. Kirby ◽

Muhammad W. Mirza ◽

James Davies ◽

Shane Ward ◽

Michael K. Theodorou

Keyword(s):

Anaerobic Digestion ◽

Nitrogen Removal ◽

Recovery Process ◽

Pilot Scale ◽

Operating Conditions ◽

Chicken Manure ◽

Nitrogen Recovery ◽

Removal Technology ◽

Chicken manure is an agricultural by-product that is a problematic feedstock for anaerobic digestion due to its high nitrogen content inhibiting methane yields. This research examines a novel pilot-scale method of ammonia stripping, the nitrogen recovery process (NRP) developed by Alchemy Utilities Ltd. The NRP was designed to remove and recover nitrogen from chicken manure and two different operating conditions were examined. Both operating conditions demonstrated successful nitrogen removal and recovery. The biochemical methane potential assays were used to compare the digestibility of the NRP-treated chicken manures to that of a fresh chicken manure control. Overall, the biochemical methane potential assays demonstrated that some NRP-treated chicken manure treatments produced significantly more methane compared to untreated manure, with no inhibition occurring in relation to ammonium. However, some of the NRP-treated chicken manures produced similar or lower methane yields compared to fresh chicken manure. The NRP requires further development to improve the efficiency of the pilot-scale unit for commercial-scale operation and longer-term continuous anaerobic digestion trials are required to determine longer-term methane yield and ammonium inhibition effects. However, these initial results clearly demonstrate the technology’s potential and novel application for decentralised, on-farm nitrogen recovery and subsequent anaerobic digestion of chicken manure.

Exponential model describing methane production kinetics in batch anaerobic digestion: a tool for evaluation of biochemical methane potential assays

Bioprocess and Biosystems Engineering ◽

10.1007/s00449-014-1150-4 ◽

2014 ◽

Vol 37 (9) ◽

pp. 1759-1770 ◽

Cited By ~ 29

Author(s):

Mathieu Brulé ◽

Hans Oechsner ◽

Thomas Jungbluth

Keyword(s):

Anaerobic Digestion ◽

Methane Production ◽

Exponential Model ◽

Production Kinetics ◽

Anaerobic digestion of sunflower oil cake: a current overview

Water Science & Technology ◽

10.2166/wst.2012.586 ◽

2013 ◽

Vol 67 (2) ◽

pp. 410-417 ◽

Cited By ~ 4

Author(s):

M. A. De la Rubia ◽

V. Fernández-Cegrí ◽

F. Raposo ◽

R. Borja

Keyword(s):

Anaerobic Digestion ◽

Sunflower Oil ◽

Physical Structure ◽

Methane Yield ◽

Organic Loading Rate ◽

In Series ◽

Methane Potential ◽

Bmp Test ◽

Sunflower Oil Cake

Due to the chemical and physical structure of a lignocellulosic biomass, its anaerobic digestion (AD) is a slow and difficult process. In this paper, the results obtained from a batch biochemical methane potential (BMP) test and fed-batch mesophilic AD assays of sunflower oil cake (SuOC) are presented. Taking into account the low digestibility shown during one-stage experiments the methane yield decreased considerably after increasing the organic loading rate (OLR) from 2 to 3 g VS L−1 d−1, SuOC was subjected to a two-stage AD process (hydrolytic-acidogenic and methanogenic stages), in two separate reactors operating in series where the methanogenic stage became acidified (with >1,600 mg acetic acid L−1) at an OLR as low as 2 g VS L−1 d−1. More recently, BMP assays were carried out after mechanical, thermal, and ultrasonic pre-treatments to determine the best option on the basis of the methane yield obtained.

An OxiTop® protocol for screening plant material for its biochemical methane potential (BMP)

Water Science & Technology ◽

10.2166/wst.2012.305 ◽

2012 ◽

Vol 66 (7) ◽

pp. 1416-1423 ◽

Cited By ~ 19

Author(s):

C. P. Pabón Pereira ◽

G. Castañares ◽

J. B. van Lier

Keyword(s):

Anaerobic Digestion ◽

Plant Material ◽

Co2 Absorption ◽

Test Conditions ◽

Anaerobic Biodegradability ◽

Methane Potential ◽

Bmp Test ◽

The Stability ◽

Guidelines And Recommendations

A protocol was developed for determining the biochemical methane potential (BMP) of plant material using the OxiTop® system. NaOH pellets for CO2 absorption and different pretreatment methods were tested for their influence in the BMP test. The use of NaOH pellets in the headspace of the bottle negatively affected the stability of the test increasing the pH and inhibiting methanization. Sample comminution increased the biodegradability of plant samples. Our results clearly indicate the importance of test conditions during the assessment of anaerobic biodegradability of plant material, considering BMP differences as high as 44% were found. Guidelines and recommendations are given for screening plant material suitable for anaerobic digestion using the OxiTop® system.