scholarly journals Limbah Cair Tapioka, Pencemaran, dan Teknik Pengolahannya

2021 ◽  
Vol 17 (1) ◽  
pp. 73-84
Author(s):  
Herna Octivia Damayanti ◽  
Metachul Husna ◽  
Dicky Harwanto
Keyword(s):  
Sequencing Batch Reactor ◽  
Treatment Process ◽  
Batch Reactor ◽  
Liquid Waste ◽  
Literature Study ◽  
Anaerobic Baffled Reactor ◽  
Anaerobic Filter ◽  
Alternative Processing ◽  
Sodium Magnesium ◽  
The Impact

ENGLISHThe tapioca industry is one type of agro-industry that is widely developed in Indonesia. The problem that often arises due to the presence of the tapioca industries is waste pollution, especially liquid waste. Tapioca liquid waste is immediately disposed of into the river flows without any treatment process. The purpose of this paper is to provide an overview of the impact caused by the disposal of tapioca liquid waste, especially on the aquaculture environment and alternative processing technology. The research method is literature study. Tapioca liquid pollution increases the death vulnerability the biota in the ponds, namely shrimp and milkfish. The danger of tapioca liquid waste pollution can be minimized by treating the disposed liquid waste properly. Several alternatives of wastewater treatment that can be applied to minimize the impact of pollution caused by tapioca liquid waste are (1) ultrafiltration membranes can separate suspended solids; ABR (Anaerobic Baffled Reactor) and UAF (Up-flow Anaerobic Filter) systems can reduce COD concentrations; photo-catalysts can reduce COD concentrations; phytoremediation with water hyacinth can reduce BOD, COD, and CN concentrations and increase pH of tapioca wastewater; and batch sequencing reactor shows efficiency of removing HCN, BOD, COD, turbidity, sodium, magnesium, and calcium. INDONESIAIndustri tapioka merupakan salah satu jenis agroindustri yang banyak berkembang di Indonesia. Permasalahan yang sering timbul dari industri tapioka adalah pencemaran limbah, terutama limbah cair. Limbah cair tapioka langsung dibuang ke aliran sungai tanpa melewati proses pengolahan terlebih dahulu. Tujuan dari penulisan ini adalah memberikan gambaran mengenai dampak yang ditimbulkan oleh adanya pembuangan limbah cair tapioka khususnya terhadap lingkungan pertambakan serta alternatif teknologi pengolahannya. Metode yang digunakan adalah studi pustaka. Pencemaran limbah cair tapioka mengakibatkan kerawanan kematian biota yang dibudidayakan di tambak, yaitu udang dan bandeng. Bahaya pencemaran limbah cair tapioka dapat diminimalisir dengan melakukan pengolahan terhadap limbah cair yang dibuang. Beberapa alternatif pengolahan limbah cair untuk meminimalisir dampak pencemaran oleh limbah cair tapioka, yaitu (1) membran ultrafiltrasi, yang dapat memisahkan padatan tersuspensi; (2) sistem ABR (Anaerobic Baffled Reactor) dan sistem UAF (Upflow Anaerobic Filter, yang dapat menurunkan konsentrasi COD; (3) fotokatalis, yang dapat menurunkan konsentrasi COD; (4) fitoremediasi dengan eceng gondok, yang mampu menurunkan konsentrasi BOD, COD, dan CN serta meningkatkan pH limbah cair tapioka; dan (5) sistem SBR (Sequencing Batch Reactor) menunjukkan efisiensi pembuangan HCN, BOD, COD, kekeruhan, sodium, magnesium, dan kalsium.

scholarly journals The Impact of an Ultrasonic Field on the Efficiency of Coke Wastewater Treatment in a Sequencing Batch Reactor

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 963
Author(s):  
Anna Kwarciak-Kozłowska ◽  
Małgorzata Worwąg
Keyword(s):  
Wastewater Treatment ◽  
Sequencing Batch Reactor ◽  
Treatment Process ◽  
Batch Reactor ◽  
Oxygen Demand ◽  
Ultrasonic Field ◽  
Toxic Substances ◽  
Coke Wastewater ◽  
Biological Methods ◽  
The Impact

The growing production of coke and, consequently, coke wastewater is a significant problem for the environment. Coke wastewater, because it contains high amounts of toxic substances, is classified as an extremely hazardous industrial wastewater. The treatment of such wastewater requires a combination of advanced physicochemical and biological methods. The aim of the research was to investigate the effectiveness of the application of the ultrasonic disintegration of coke wastewater in a sequencing batch reactor (SBR). The tests were conducted in two stages, wherein the first stage involved determining the most favorable sonication conditions, that is, time and amplitude. The authors used the following amplitudes: 31 µm; 61.5 µm; 92 µm; 123 µm and times: 120 s; 240 s; 480 s; 960 s. The second stage focused on treating coke wastewater in SBRs (Reactor A—a proportion of coke wastewater in the mixture: 5%, 10%, and 20%; reactor B—sonicated coke wastewater, proportion in mixture: 5%, 10%, 20%). The efficiency of the treatment process was determined based on the rate of removal of selected parameters: chemical oxygen demand (COD), total organic carbon (TOC), inorganic carbon (IC), ammoniacal nitrogen (N-NH4), total nitrogen (TN), the course of pH changes. The study revealed that sonication of coke wastewater increased biodegradability and reduced its toxicity. The use of the preliminary sonication of coke wastewater before biological treatment improved the degree of removal of the tested parameters by approximately 10%. The volumetric ratio of coke wastewater in the mixture had the greatest impact on the obtained results. The use of an ultrasound field allows the treatment process to be executed with a coke wastewater addition exceeding 10%. In addition, it was found that in order to increase the coke wastewater treatment efficiency, one should optimize individual phases in the SBR and the pollution load.

The impact of powdered keramsite on activated sludge and wastewater treatment in a sequencing batch reactor

2019 ◽  
Vol 237 ◽  
pp. 305-312 ◽  
Author(s):  
Adam Masłoń ◽  
Janusz A. Tomaszek ◽  
Justyna Zamorska ◽  
Monika Zdeb ◽  
Adam Piech ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
The Impact

scholarly journals Normative Study on Environmental Impact and Hazardous Waste Management in Mojokerto Region

2021 ◽  
Vol 10 ◽  
Author(s):  
Wahyu Jeffry Purwanto ◽  
Abdul Fatah
Keyword(s):  
Waste Management ◽  
Environmental Pollution ◽  
Environmental Law ◽  
Liquid Waste ◽  
Primary Data ◽  
Observation Data ◽  
Literature Study ◽  
Normative Study ◽  
Legal Method ◽  
The Impact

This study aims to describe the impact of environmental pollution, the causes of rejection from the Medali village community, and to evaluate the pollution violations in terms of environmental law. Furthermore, an analysis of the handling of pollution, the impact on the environment, an assessment of the location of the factory was conducted to criticize the existence of a rubber factory. This thesis research uses Law Number 32 Year 2009 concerning Environmental Protection and Management including handling and overcoming the risk of environmental pollution. This study uses the socio-legal method, using primary data and secondary data which are then analyzed using the juridical-empirical writing type specification, field observation data collection, interviews, and literature study. The results show, in the implementation of waste management by PT Bumi Nusa Makmur there is a mismatch with the proper standard of waste disposal, a violation of the establishment and expansion of company land, as well as environmental impacts in the form of environmental pollution related to air and liquid waste which affects the environment and communities around Medali village

Strategies for dealing with piggery effluent in Australia: the sequencing batch reactor as a solution

2000 ◽  
Vol 41 (1) ◽  
pp. 123-126 ◽  
Author(s):  
B.D. Edgerton ◽  
D. McNevin ◽  
C.H. Wong ◽  
P. Menoud ◽  
J.P. Barford ◽  
...  
Keyword(s):  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Pilot Scale ◽  
Land Application ◽  
Swine Wastewater ◽  
Piggery Wastewater ◽  
Wastewater Disposal ◽  
Odour Emissions ◽  
Accepted Practice ◽  
The Impact

Currently the accepted practice for swine wastewater disposal is lagoon stabilisation followed by land application. This disposal method can exacerbate odour emissions and contribute to soil contamination and eutrophication of waterways. Intensification of the pig industry has increased the impact of individual piggeries; this combined with tightening legislation is causing the pig industry in Australia to look at alternative treatment methods. A pilot scale sequencing batch reactor (SBR) was built to treat piggery wastewater. It achieved NH4+ and odour reductions of greater than 99% as well as 79% removal of COD and a 49% reduction of PO43−on a mass balance basis. The reactor experienced problems with foaming for the first 2 months of operation, which was controlled with vegetable oil until the foaming stopped. Struvite formation also occurred within the reactor and influent pipes but it was calculated that sufficient nutrients were removed to prevent precipitation down stream of the SBR.

MODELLING WASTEWATER TREATMENT PROCESS IN A SMALL PLANT USING A SEQUENCING BATCH REACTOR (SBR)

2014 ◽  
Vol 13 (7) ◽  
pp. 1561-1566 ◽  
Author(s):  
Narcis Barsan ◽  
Ion Joita ◽  
Marius Stanila ◽  
Cristian Radu ◽  
Mihaela Dascalu
Keyword(s):  
Wastewater Treatment ◽  
Sequencing Batch Reactor ◽  
Treatment Process ◽  
Batch Reactor ◽  
Wastewater Treatment Process ◽  
Small Plant

Carbon and nitrogen removal from a wastewater of an industrial dairy laboratory with a coupled anaerobic filter-sequencing batch reactor system

2001 ◽  
Vol 43 (3) ◽  
pp. 249-256 ◽  
Author(s):  
J. M. Garrido ◽  
F. Omil ◽  
B. Arrojo ◽  
R. Méndez ◽  
J. M. Lema
Keyword(s):  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Treatment System ◽  
Organic Load ◽  
Anaerobic Sludge ◽  
Milk Analysis ◽  
Methanogenic Activity ◽  
Anaerobic Filter ◽  
Final Effluent

A set of two reactors, an Anaerobic Filter (AF) of 12 m3 and a Sequencing Batch Reactor (SBR) of 28 m3, coupled in series, were used to treat the wastewaters from an industrial milk analysis laboratory. The characteristics of these effluents are similar to those discharged by dairy factories (average values around 10 kg COD/m3 and 0.20 kg N/m3). These wastewaters were produced as the result of the final mixture of the analysed milk samples, with a very high organic load, and other low strength effluents, such as sewage and other minor liquid streams generated in the laboratory. Two microbial growth inhibitors, sodium azide and chloramphenicol, were systematically added to the milk before its analysis. Preliminary results have shown that these compounds did apparently not inhibit the methanogenic activity of the anaerobic sludge. Toxicity determination, using the Microtox method, resulted in EC50 values for the wastewaters of 20 g/L, whereas the final effluent from the SBR was non toxic. A maximum OLR of 8 kg COD/m3·d was treated in the AF, being the maximum OLR in the SBR around 1.5-2 kg COD/m3·d. During operation, the soluble COD of the final effluent from the SBR was usually below 200 mg/L, and total nitrogen (mainly nitrate) below 10 mg N/L. Assimilation of nitrogen for growth and nitrification-denitrification were the main mechanisms of nitrogen removal from the wastewater. In the anaerobic system between 50-85% of the organic matter was converted into methane, being the remaining COD and most of the nitrogen removed in the suspended culture system. Overall COD removal in the treatment system was 98% and the nitrogen removal up to 99%. The combination of the AF and the SBR was advantageous resulting in a lower energy consumption and sludge generation in the treatment system.

scholarly journals Design of Sequencing Batch Reactor (SBR) Treatment Plant for Abattoir Wastewater (A Case of Apa Mmini Stream)

2020 ◽  
pp. 15-21
Author(s):  
Ogbebor Daniel ◽  
Ndekwu, Benneth Onyedikachukwu
Keyword(s):  
Activated Sludge ◽  
Sequencing Batch Reactor ◽  
Settling Velocity ◽  
Batch Reactor ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Treatment Method ◽  
Design Parameters ◽  
Sequence Batch Reactor ◽  
The Impact

Aim: The study aimed at designing a wastewater treatment method for removal of (Biological Oxygen Demand) BOD5 using Sequencing batch reactor (SBR). Study Design: SBR functions as a fill-and-draw type of activated sludge system involving a single complete-mix reactor where all steps of an activated sludge process take place. Methodology: The intermittent nature of slaughterhouse wastewaters favours batch treatment methods like sequence batch reactor (SBR). Attempts to remediate the impact of this BOD5 on the stream, led to the design of a sequence batch reactor which was designed to treat slaughterhouse effluent of 1000 L. Results: The oxygen requirement for effective removal of BOD5 to 95% was determined to be 21.10513 kgO2/d, while L:B  of 3:1 was considered for the reactor. Also, air mixing pressure for the design was 0.16835 bar, while settling velocity was . Conclusion: To ensure proper treatment of BOD5 load of the slaughterhouse, a sequencing Batch reactor of 1000 litre carrying capacity was designed. For effective operation of this design, the pressure exerted by the mixing air was 0.16835 bar which was far greater than the pressure exerted by the reactor content and the nozzle. Settling velocity of 0.0003445 m/s for 0.887 hrs was required for the reactor to be stable and a theoretical air requirement of 1.6884 m³/d was calculated. Hence the power dissipated by the rising air bubbles to ensure efficient mixing of oxygen in the reactor was calculated as 26530003.91 Kilowatts. With these design parameters, the high BOD5 load downstream of the river can be treated to fall below the FMEnv recommended limit of 50 mg/l.

scholarly journals The effect of time and velocity variation in sequencing batches reactor on TSS and nitrogen removal in tofu waste

2021 ◽  
Vol 896 (1) ◽  
pp. 012027
Author(s):  
S Sudarno ◽  
N Hardyanti ◽  
B Zaman ◽  
A Arihta ◽  
R Putri
Keyword(s):  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Anaerobic Bacteria ◽  
Liquid Waste ◽  
Preliminary Test ◽  
Velocity Variation ◽  
Sequence Batch Reactor ◽  
Home Industries ◽  
Very High

Abstract The tofu industry is one of the home industries which in the processing process, produces liquid waste. Tofu liquid waste is known to contain very high organic matter such as Nitrogen and TSS so that if it is directly discharged into water bodies, if discharged directly into the environment will cause water. The purpose of this study was to determine and analyse the effect of variations in times and velocity of sequence batch reactor on the optimization of Nitrogen and TSS removal in tofu industrial wastewater by anaerobic bacteria originating from natural sediments. This study uses a Sequencing Batch Reactor, and the waste used is artificial by the characteristics in the preliminary test. In this study, time and speed variations were used in the mixing process. The artificial waste has a TSS value of 2,910 mg/l and Nitrogen of 18.82 mg/l. The results show that using a sequence batch reactor can reduce the TSS value to 66 mg/l and reduce the nitrogen value to 1.214 mg/l.

Nitrogen nutrient removals from wastewater and river water

2002 ◽  
Vol 45 (12) ◽  
pp. 197-204 ◽  
Author(s):  
R. Abdul-Rahman ◽  
H. Tsuno ◽  
N. Zainol
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
River Water ◽  
Sequencing Batch Reactor ◽  
Treatment Process ◽  
Batch Reactor ◽  
Residence Times ◽  
Wastewater Treatment Process ◽  
Total N ◽  
Chlorinated Organics

Elevated levels of nutrients in agroindustry wastewaters, and higher reliance on chlorination pose health threats due to formation of chlorinated organics as well as increased chlorination costs. Removals of ammonium and nitrate compounds were studied using activated carbon from palm shells, as adsorbent and support media. Experiments were carried out at several loadings, F:M from 0.31 to 0.58, and hydraulic residence times (HRT) of 24 h, 12 h and 8 h. Results show that the wastewater treatment process achieved removals of over 90% for COD and 62% for Total-N. Studies on removals from river water were carried out in sequencing batch reactor (SBR) and activated carbon biofilm (ACB) reactor. Removals achieved by the SBR adsorption-biodegradation combination were 67.0% for COD, 58.8% for NH3-N and 25.5% for NO3-N while for adsorption alone the removals were only 37.0% for COD, 35.2% for NH3-N and 13.8% for NO3-N. In the ACB reactor, at HRT of 1.5 to 6 h, removals ranged from 12.5 to 100% for COD, 16.7 to 100% for NO3-N and 13.5 to 100% for NH3-N. Significant decrease in removals was shown at lower HRT. The studies have shown that substantial removals of COD, NO3-N and NH3-N from both wastewater and river water may be achieved via adsorption-biodegradation by biofilm on activated carbon processes.

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