Preparation of Gypsum Retarding Material and Activated Carbon from Waste Mycelium

2016 ◽  
Vol 703 ◽  
pp. 297-300 ◽  
Author(s):  
Mi Mi Chen ◽  
Meng Meng Zhang ◽  
Feng Qing Zhao
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Iodine Value ◽  
Filter Cake ◽  
Protein Hydrolysate ◽  
Setting Time ◽  
Industrial Applications ◽  
Aqueous Alkaline Solution ◽  
Gypsum Plaster ◽  
Waste Mycelium

A clean and safe process of utilizing waste penicillin mycelium (WPM) was proposed in this paper. We treated WPM by soaking it in aqueous alkaline solution, to produce retarders for hemihydrate gypsum (the protein hydrolysate) by filtration. The filter cake was used to produce activated carbon, while the waste water can be reused for soaking process. This retarder can effectively prolong the setting time of gypsum with less drop in mechanical strength of gypsum plaster. The activated carbon produced with 674 mg/g of Iodine value, which meets the requirements of general industrial applications.

scholarly journals Production and characteristics of fish protein hydrolysate from parrotfish (Chlorurus sordidus) head

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8297 ◽  
Author(s):  
Asep A. Prihanto ◽  
Rahmi Nurdiani ◽  
Annas D. Bagus
Keyword(s):  
Antioxidant Activity ◽  
Protein Hydrolysate ◽  
Essential Amino Acids ◽  
Amino Acid Profile ◽  
Industrial Applications ◽  
Control Treatment ◽  
Degree Of Hydrolysis ◽  
Fish Protein ◽  
Fish Protein Hydrolysate ◽  
High Level

Background Fish byproducts are commonly recognized as low-value resources. In order to increase the value, fish byproducts need to be converted into new products with high functionality such as fish protein hydrolysate (FPH). In this study, FPH manufactured from parrotfish (Chlorurus sordidus) heads using different pH, time and sample ratio was investigated. Methods Hydrolysis reactions were conducted under different pHs (5, 7, and 9) and over different durations (12 and 24 h). Control treatment (without pH adjustment (pH 6.4)) and 0 h hydrolsisis duration were applied. Hydrolysates were characterized with respect to proximate composition, amino acid profile, and molecular weight distribution. The antioxidant activity of the hydrolysate was also observed. Results The pH and duration of hydrolysis significantly affected (p < 0.05) the characteristics of FPH. The highest yield of hydrolysate (49.04 ± 0.90%), with a degree of hydrolysis of 30.65 ± 1.82%, was obtained at pH 9 after 24 h incubation. In addition, the FPH had high antioxidant activity (58.20 ± 0.55%), with a high level of essential amino acids. Results suggested that FPH produced using endogenous enzymes represents a promising additive for food and industrial applications.

scholarly journals PERENCANAAN INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK DENGAN KOMBINASI UNIT BIOFILTER AEROBIK DAN ADSORPSI KARBON AKTIF KANTOR PUSAT PT.PERTAMINA MARKETING OPERATION REGION (MOR) V SURABAYA

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ridlo Barkah Jembar Pinanggih ◽  
Dyah Ratri Nurmaningsih ◽  
Sulistiya Nengse ◽  
Teguh Taruna Utama ◽  
Abdul Hakim
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Treatment Plant ◽  
Quality Data ◽  
Waste Water Treatment Plant ◽  
Processing Plant ◽  
Activated Carbon Adsorption ◽  
Water Quality Data ◽  
Carbon Adsorption ◽  
Marketing Operation

Permasalahan air limbah di Indonesia merupakan isu pencemaran lingkungan yang strategis dalam pembangunan berkelanjutan, baik yang bersumber dari pemukiman penduduk maupun unit usaha perkantoran. Tingginya kandungan organik terlarut di dalam air limbah dapat menyebabkan penurunan intesitas masuknya cahaya matahari yang dibutuhkan oleh mikroorganisme fotosintetik dan berdampak pada penurunan kualitas badan air. Tujuan dari penelitian ini yaitu merencankan pembangunan unit Instalasi Pengolahan Air Limbah (IPAL) domestik di Kantor Pusat PT. Pertamina Marketing Operation Region (MOR) V Surabaya dengan menggunakan kombinasi unit biofilter aerobik dan adsorpsi karbon aktif beserta perhitungan volume bangunan dan Rencana Anggaran Biaya (RAB) yang dibutuhkan. Teknologi pengolahan ini dipilih karena memiliki keunggulan dalam meremoval kadar pencemar organik dengan tingkat efisiensi yang tinggi dan kebutuhan lahan yang tidak terlalu luas. Metode penelitian menggunakan data sekunder yang diperoleh dari data perusahaan berupa debit pemakaian air bersih, layout kantor, data kualitas air limbah, serta informasi lain yang terkait dengan perencanaan. Hasil penelitian yang didapat berupa gambar desain (DED) unit IPAL, dimensi total bangunan pengolah seluas 34m2(P=17m dan L=2m), spesifikasi bahan yang digunakan, serta rencana anggaran biaya yang dibutuhkan untuk pembangunan kontruksi unit IPAL yaitu sebesar Rp243.136.020,00. Perencanaan ini juga ditunjang dengan panduan dalam operasional dan perawatan unit IPAL.  Kata kunci: Adsorpsi karbon aktif, air limbah domestik, biofilter aerobik, desain IPAL. The problem of wastewater in Indonesia is a strategic issue of environmental pollution in sustainable development, both sourced from residential areas and office business units. The high dissolved organic content in wastewater can cause a decrease in the intensity of sunlight needed by photosynthetic microorganisms and have an impact on the quality of water bodies. The purpose of this study is to plan the construction of a domestic Waste Water Treatment Plant (WWTP) at the Head Office of PT. Pertamina Marketing Operation Region (MOR) V Surabaya using a combination of aerobic biofilter units and activated carbon adsorption along with the calculation of building volume and the required Budget Plan. This processing technology was chosen because it has advantages in renovating organic pollutant levels with a high level of efficiency and land requirements that are not too broad. The research method uses secondary data obtained from company data in the form of debit of clean water usage, office layout, waste water quality data, and other information related to planning. The results obtained in the form of design drawings (DED) of WWTP units, the total dimensions of the processing plant area of 34m2 (P = 17m and L = 2m), as well as the material specifications used, as well as the budget plan required for the construction of WWTP unit construction is Rp243. 136,020.00. This planning is also supported by guidelines in the operation and maintenance of WWTP units. Keywords: Activated carbon adsorption, aerobic biofilter, domestic wastewater, WWTP design.

Decolorization of Waste Water from Reed Three-Stage Count-Current Ethanol-Water Batch Cooking

2013 ◽  
Vol 295-298 ◽  
pp. 1793-1797
Author(s):  
Lan Qiang Tian ◽  
Na Li ◽  
Qing Wei Ping ◽  
Jian Zhang ◽  
Hai Qing Shi
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Ph Value ◽  
Combination Method ◽  
Column Height ◽  
Waste Liquor ◽  
Carbon Absorption ◽  
Counter Current ◽  
Calcium Superphosphate

The waste liquor from the first cooking stage of reed three-stage counter-current batch cooking with ethanol-water process was decolorized by preliming, sulfitation and activated carbon absorption combination method. The preliming temperature, calcium superphosphate dosage, pH Value, Na2SO3dosage in preliming and sulfitation, column height and velocity in activated carbon absorption have effect on decolorization. The results indicated that the 50 mL un decolorized waste liquor have the best decolorizing effect when the preliming temperature was 80°C, calcium superphosphate dosage was 1 g, pH value was 7, Na2SO3dosage was 0.04 mol, column height was 12 cm and velocity was 2mL/min, the decolorized rate of waste liquor could be up to 98.1%.

Preparation and use of maize tassels’ activated carbon for the adsorption of phenolic compounds in environmental waste water samples

2014 ◽  
Vol 22 (8) ◽  
pp. 5780-5792 ◽  
Author(s):  
O. F. Olorundare ◽  
T. A. M. Msagati ◽  
R. W. M. Krause ◽  
J. O. Okonkwo ◽  
B. B. Mamba
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Phenolic Compounds ◽  
Water Samples

scholarly journals Progress in the Characterization of the Surface Species in Activated Carbons by means of INS Spectroscopy Coupled with Detailed DFT Calculations

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Andrea Piovano ◽  
Andrea Lazzarini ◽  
Riccardo Pellegrini ◽  
Giuseppe Leofanti ◽  
Giovanni Agostini ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Activated Carbons ◽  
Inelastic Neutron ◽  
Industrial Applications ◽  
Surface Species ◽  
Dft Methods ◽  
Neutron Spectra ◽  
Out Of Plane ◽  
Bending Modes

Activated carbons are materials with relevance in different industrial applications. Due to the inherent complexity and heterogeneity of their structures, an easy assignment of the species present on their surface has a challenging result. Only recently, with the possibility to collect well-resolved inelastic neutron spectra and to simulate by DFT methods more or less extended graphitic clusters, this task is starting to become feasible. Here we report our investigation on a steam activated carbon and we show that different vibrations in the region of out-of-plane C-H bending modes are specifically connected to hydrogen terminations belonging to extended and regular borders or to short and defective ones. Furthermore, simulations including heteroatoms such as oxygen allowed us to point out spectral regions with a contribution from carboxyl species.

Removal of Phenol in Waste Water with Activated Carbon Prepared from Corncob Xylitol Residue

2013 ◽  
Vol 726-731 ◽  
pp. 2270-2273
Author(s):  
Jing Wen Xue ◽  
Shi Shuai Gao ◽  
Chun Hua Yin ◽  
Zheng Heng Li
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Phenol Solution

Corncob xylitol residue was soaked with H3PO4 for 16h and carbonized in microwave for 9min to obtain activated carbon. The adsorbing property of the activated carbon was investigated. Results showed phenol could be adsorbed effectively by activated carbon and the optimum adsorbing condition was: 20°C, 2h, pH 3-4. Increasing the amount of activated carbon could adsorb more phenol, and this effect was not apparent when the amount of activated carbon was more than 0.5g when adsorbing 100mL of 200mg/L phenol solution.

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