scholarly journals ADSORPSI PENCEMARAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT OLEH KITOSAN YANG MELAPISI ARANG AKTIF TEMPURUNG KELAPA

2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Musrowati Lasindrang
Keyword(s):  
Wastewater Treatment ◽  
Liquid Waste ◽  
Quality Standard ◽  
Low Ph ◽  
Active Charcoal ◽  
Treatment Unit ◽  
Chitosan Coating ◽  
Leather Tanning ◽  
Adsorption Capability ◽  
Tanning Industry

Chitosan has been used as biosorbent. In addition to having advantages, chitosan as biosorbent also has disadvantages. Chitosan is very soluble in low pH, so it cannot adsorb Cr (total) at low pH. It is because the active site (amine group) of chitosan undergoes protonation, and its adsorption capability is easily influenced by anions in waters. Therefore, this research studied the use of chitosan coating on active charcoal of coconut shell to increase the adsorption capability of Cr (total), BOD, and COD. This research was done to evaluate the characteristics of the liquid waste quality with or without Wastewater treatment unit (IPAL), and compare them with the Regulation of DIY Governor number 7/2010. It also studied the effect of pH and Concentration of chitosan coating on active charcoal as adsorbent on the decrease of Cr (total), BOD, and COD concentration in the liquid waste of leather tanning. The results indicate that the liquid waste of the leather tanning industry with and without Wastewater treatment unit (IPAL) have exceeded the quality standard for the liquid waste of leather tanning industry. An ANOVA statistical test indicated that Cr (total), BOD, and COD are significant at 0.05 (p < 0.05), with various pH influencing the decrease in Cr (total), BOD, and COD. The highest removal percentage resulting from the effect of chitosan concentration coating on active charcoal is obtained in adsorbent C (K3A1), with Cr (total) (91.9%); BOD (99.5%); and COD (98.47%).;

Prospect Research on Application of Mobile Liquid Radwaste Treatment Unit in Nuclear Power Plant

2017 ◽  
Author(s):  
Laiye Zhu ◽  
Maogang Zhu ◽  
Yanhong He ◽  
Xin Wang ◽  
Wenshu Dong
Keyword(s):  
Wastewater Treatment ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Mobile Device ◽  
Nuclear Power ◽  
New Technologies ◽  
Liquid Waste ◽  
Waste Processing ◽  
Radioactive Liquid Waste ◽  
Treatment Unit

With the introduction of third generation of nuclear power AP1000, Westinghouse uses the mobile device (a mobile wastewater treatment device 6 units shared) radioactive waste system design concepts. This design not only simplifies the process of nuclear island waste system; saves equipment layout space; improves equipment utilization; while increases the use of new technologies lifetime of the plant and the possibility of flexibility. This paper introduces the first AP1000 unit (Sanmen, Zhejiang Province) by using the advanced mobile device technology and application of wastewater treatment under the condition of the primary coolant source level. At the same time, the paper also discusses the periodic system inspection and the strategy of maintenance. In addition, the paper further expands the application direction of the mobile waste processing aspects, such as: decommissioning of nuclear facilities; enhancing the facility decommissioning radioactive liquid waste purification capability. Another example: After the Fukushima accident, people pay more attention to accident-mitigation-design and hope to accelerate the development of emergency radioactive liquid waste processing devices. Thus, in addition to strengthening the nuclear power plant inherent defense in depth and resistance emergency capability, mobile waste treatment device or combination device special regional settings can be made to improve and enhance the ability to get more diversified emergency response.

Chemical Treatment of Liquid Waste Generated from Leather Tannery Industry by Using Alum as Coagulant Material

2020 ◽  
Vol 991 ◽  
pp. 178-184
Author(s):  
Zainus Salimin ◽  
Faldy W. Satiyoaji ◽  
Dwi A. Prasetya ◽  
Achmad Chafidz
Keyword(s):  
Chromium Content ◽  
Liquid Waste ◽  
Quality Standards ◽  
Trivalent Chromium ◽  
Total Chromium ◽  
Chromium Level ◽  
A Value ◽  
Leather Tanning ◽  
Tannery Industry ◽  
Tanning Industry

The tannery industry generally produces trivalent chromium waste (Cr3 +) and hexavalent chromium (Cr6 +). This waste before being released into the environment must meet quality standards according to KEPMENLH no.51 / MENLH / 10/1995 concerning liquid quality standards for industrial activities which says the maximum total chromium content is 0.6 ppm. This study aims to reduce the levels of Chromium in waste produced by the leather tanning industry by using alum coagulants. This research uses simulation waste which is made based on the results of BPPT analysis of waste in the leather tanning industry in Tangerang city, namely CV "Lengtat Tangerang Leather". The method used in this research is coagulation-flocculation with alum as a coagulant and lime as an alum reaction assistant in the form of hydroxide ions. The parameters observed in this study were the pH adjustment and the ratio of alum mass to lime mass. From the results of the study it was found that the decrease in the best chromium content for Cr + 3 occurred at a ratio of 5 and pH 8.2 which resulted in a chromium content of 0.0076 ppm with a decrease in percentage of 99.95%. As for the Cr6 + test, at a ratio of 3 and pH 6.4 the chromium content showed a value of 0.4110 ppm. The lowest chromium level occurs at a ratio of 5 and pH of 5.8 which results in a chromium level of 0.3341 ppm with a decrease percentage of 56.61%.

scholarly journals Green Productivity in the Indonesian Leather-tanning Industry

2020 ◽  
Vol 20 (3) ◽  
pp. 245-266
Author(s):  
Febriani Purba ◽  
Ono Suparno ◽  
Ani Suryani
Keyword(s):  
Material Flow ◽  
Liquid Waste ◽  
High Water ◽  
Study Data ◽  
Environmental Indicators ◽  
Central Java ◽  
Green Productivity ◽  
Leather Tanning ◽  
Gp Index ◽  
Tanning Industry

Green productivity (GP) is a strategy by which production processes are improved by efficiently using resources and materials and adverse impacts on the environment are reduced. This study aims to measure GP of an Indonesian leather-tanning industry and develop alternatives to current processes that would improve its environmental and economic impacts. Two small to medium tanneries (Tanneries A and B) in two provinces were used as a case study. Data were collected through direct observation, measurements, in-depth interviews, and activity documentation. Material flow was analyzed using a green material flow map to determine the six sources of green wastes and the environmental indicators. The GP Index (GPI) was used to measure GP. The best method by which to improve GP was determined using GPI to a ratio of GP along with expert analysis using an analytical hierarchy process. GPI at Tannery A, located in West Java, was 0.14 with economic and environmental indicators of 1.44 and 10.41, respectively. GPI at Tannery B, located in Central Java, was 0.16 with economic and environmental indicators of 1.60 and 9.99, respectively. GP in both tanneries was low because of their suboptimal use of water. High water consumption can lead to a high discharge of liquid waste. Six alternatives for Tannery A and four for Tannery B were created. According to GPI, GP ratio, and expert opinion, the best strategy by which to improve GP was water recycling in the soaking and liming processes. This strategy increased GPI at Tannery A to 0.18 and at Tannery B to 0.20.

scholarly journals Kualitas Limbah Cair Industri Tahu Berdasarkan Parameter BOD, pH, COD dan TSS di Kelurahan Bara-Baraya Timur Kota Makassar

Lontara ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 89-95
Author(s):  
Novi Poni Harwani ◽  
Sartika Fathir Rahman ◽  
Siti Maifa Diapati
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Negative Impact ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Observational Research ◽  
Treatment Unit ◽  
Surrounding Environment ◽  
The Government

Tofu industrial liquid waste contains high organic matter, if it is discharged into the environment without being processed first, it will have a negative impact in the form of environmental pollution. Currently, most of the tofu industry is still a small household scale industry, for example in Bara-baraya one of the tofu industries is not equipped with a wastewater treatment unit. The Bara-baraya tofu industry is located right in the middle of a residential area, so this can cause disturbance to the surrounding environment. This study aims to determine the quality of the tofu industrial wastewater in the Bara-Baraya Timur Village, Makassar City in terms of pH, BOD, COD, and TSS parameters. The type of research used is observational research with a descriptive approach. The method of examining samples from the parameters of BOD, COD, TSS and pH in the tofu industrial wastewater refers to the SNI for water quality testing methods and is examined at the Makassar Health Laboratory Center. The results of the inspection of the quality of tofu waste water compared to the Minister of Environment Regulation No. 5/2014 are the pH parameter 3.85 (not eligible), COD parameter 499 mg/L (not eligible), TSS parameter 4.777.50 mg/L (not eligible), and BOD parameters 1.771.88 mg/L (not eligible). The conclusion in this study is the quality of tofu wastewater in waste samples that have not undergone treatment at the wastewater treatment plant (IPAL) located in the tofu industry located in RW 4, Bara-Baraya Village, Makassar City, does not meet the requirements and exceeds the quality standards that have been set. determined by the government so that it can cause pollution to the surrounding environment.

scholarly journals Modelling Integrated Wastewater Treatment Plant for Agro Industry Zone in Banyuasin, South Sumatera, Indonesia

2016 ◽  
Vol 11 (2) ◽  
pp. 368-377
Author(s):  
Hasmawaty Hasmawaty
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Value Added ◽  
Industrial Area ◽  
Quality Standard ◽  
Wetland Ecosystems ◽  
Industry Area ◽  
Wwtp Design

The purpose of this article is to analyze integrated wastewater treatment plant (WWTP) design for Tanjung Api-Api (TAA) agro-industrial area, South Sumatra, Indonesia, using Environmentally Sensitive Investment System (ESIS). This article is based on empirical research that conducted in Banyuasin District, South Sumatera Province, Indonesia. Our result show that wastewater discharge (Q) release into river at E5 has reachton/day and contain 87.16 mg/l TSS. This number does not exceed200 mg/l, TSS threshold for industry area, which regulated by South Sumatra Province through Regulation of the Governor of South Sumatera 18/2005 on Liquid Waste Quality Standard (LWQS). It also produced BOD (100 mg/l) lower than LQWS standard (200 mg/l). Sludge dewatering generate 724,48mg/l/day TSS which can be converted into value-added product. Our WWTP design for TAA area can protect wetland ecosystems in South Sumatra Province. We also give recommendation for TAA multi-stakeholder and propose several topics for further research.

scholarly journals The Potential of Constructed Wetlands for Liquid Waste Management in Small and Medium-Scale Tannery: A Literature Review

2021 ◽  
Vol 7 (1) ◽  
pp. 1-9
Author(s):  
Febriani Purba
Keyword(s):  
Wastewater Treatment ◽  
Literature Review ◽  
Waste Management ◽  
Constructed Wetlands ◽  
Liquid Waste ◽  
Environmentally Friendly ◽  
Proper Treatment ◽  
Medium Scale ◽  
Potential Applications ◽  
Tanning Industry

The leather tanning industry or tannery, mainly in the small and medium scale (SMEs), is not environmentally friendly. Limited capitals drive the SMEs-scale tanneries to dispose of liquid waste directly into water bodies without proper treatment.  It might cause serious environmental problems due to the high content of COD, BOD, chromium, and dyes.  Treatment of liquid waste using constructed wetlands has been widely used because it is efficient, cheap, and powerful. This review discusses the latest studies in the wastewater treatment of tanneries using phytoremediation techniques and constructed wetlands and their potential applications in the SMEs tanneries.

Serbuk Biji Asam Jawa (Tamarin Dusindica L) untuk Pengelolaan Limbah Industri Cair Tempe (Studi Kasus Mataram)

2021 ◽  
Vol 7 (2) ◽  
pp. 272-279
Author(s):  
Leny Fitriah ◽  
Dwi Agustini
Keyword(s):  
Wastewater Treatment ◽  
Waste Water Treatment ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Treatment Unit ◽  
Percentage Decrease ◽  
Tamarind Seed ◽  
Coagulant Dosage ◽  
Optimum Ph ◽  
Stirring Time

Most of the tempe industry have not been equipped with a waste water treatment unit. It is usually a water soaked soybeans and soybean excess water is still discharged directly in the into the environment. Liquid waste industrial of tempeh contain high organic materials. One of the process for wastewater treatment is coagulation with the addition of a positively charged polyelectrolyte in tempeh wastewater as negatively charged. One of plants in Indonesia that can be used as an alternative coagulant is tamarind seeds (Tamarindus indica, L).it can be used for wastewater treatment is more economical. The aims of this experiment is to determine the optimum stirring time, optimum pH of the waste and optimum coagulant dosage for treatment of the tempeh wastewater with coagulant tamarind seed powder. The experiment studied were stirring time, the pH of thetempeh wastewater and coagulant dosage to the percentage decrease in turbidity and COD (Chemical Oxygen Demand). The variables in the experiment were stirring time (10,15, 20, 25 and 30 minutes), the pH of the waste (3; 3.5; 4; 4 and 5) and the dosage of tamarind seed powder (100, 300, 500, 700, and 900 mg / L). COD testing methods is closed reflux method by spectrophotometry and turbidity testing using Turbidimeter. The results showed that the with coagulant tamarind seed powder effectively lowered cod levels and the dryness of tempeh liquid industrial waste. The optimum pH obtained is pH 4, optimum stirring time is 25 minutes and the increase in optimum coagulant dose is 500 mg with a percentage decrease in COD levels and noise by 90.57% and 78.94%.  Key words: liquid waste; sour power; turbidity; COD

scholarly journals Study of tofu wastewater treatment using anaerobic baffled reactor: laboratory scale

2021 ◽  
Vol 894 (1) ◽  
pp. 012017
Author(s):  
H Trihidayanti ◽  
R Ratnaningsih ◽  
B Iswanto
Keyword(s):  
Wastewater Treatment ◽  
Environmental Pollution ◽  
Biological Treatment ◽  
Liquid Waste ◽  
Quality Standard ◽  
Optimum Time ◽  
Anaerobic Reactor ◽  
Detention Time ◽  
Anaerobic Baffled Reactor ◽  
Environment Regulation

Abstract One of the foods favorites by Indonesian people is tofu. In the process of making tofu, it produces wastewater. The tofu wastewater must be treated first to reduce environmental pollution. To treat the liquid waste, it is using biological treatment by an anaerobic baffled reactor with bio-ball. The purpose of this study was to determine the optimum time at 75% tofu wastewater concentration. The detention time used in this study was 12 hours, 24 hours, 36 hours and 48 hours. Seeding takes time about 45 days, with the obtained VSS was 5550 mg/L. Furthermore, acclimatization in the reactor takes about 30 days, with an efficiency of removing COD of 86.3%. The results obtained that at 12 hours of detention, there is a COD allowance of 79.8%, 24 hours of detention time there is a COD allowance of 85.4%, 36 hours of detention time 86.3%, and 48 hours of detention time 88.4 %. It shows that the optimum detention time in this anaerobic reactor is 48 hours. However, the COD level was 765.3 mg/L is still slightly above the quality standard according to the Minister of Environment Regulation No.5 2014, which is the maximum COD level of 300 mg/L.

scholarly journals Teknologi Pengolahan Kandungan Kromium dalam Limbah Penyamakan Kulit Menggunakan Proses Adsorpsi: Review

2021 ◽  
Vol 5 (1) ◽  
pp. 90
Author(s):  
Maryudi Maryudi ◽  
Aster Rahayu ◽  
Refah Syauqi ◽  
Muhammad Kresna Islami
Keyword(s):  
High Probability ◽  
Adsorption Process ◽  
Chromium Content ◽  
Liquid Waste ◽  
Continuous Adsorption ◽  
Leather Tanning ◽  
Living Things ◽  
Chromium Absorption ◽  
Specific Potential ◽  
Tanning Industry

Permasalahan yang sering terjadi pada industri-industri saat ini adalah pengolahan limbah yang tidak sempurna. Salah satu jenis industri yang memerlukan perhatian serta pengolahannya adalah limbah yang mengandung kromium seperti pada industri penyamakan kulit. Limbah penyamakan kulit masih menyisihkan logam-logam berbahaya dalam limbahnya seperti logam berat kromium (Cr). Kromium yang digunakan untuk menghasilkan olahan kulit yang lebih halus. Sekitar 30-40% kromium akan terbawa dalam limbah cair penyamakan. Tingginya kadar kromium yang tersisa dan terbawa dalam limbah dapat menyebabkan toksisitas akut dan kronis terhadap lingkungan bahkan juga sangat berbahaya terhadap mahluk hidup. Salah satu penanganannya adalah dengan menggunakan metode adsorpsi yang dimana merupakan salah satu metode alternatif dengan berbagai keuntungan yang ada. Biaya penanganan yang relatif murah, proses yang sederhana, dan kemungkinan dapat didaur ulang merupakan beberapa keuntungan dari proses adsorbsi. Selain itu, proses adsorbsi dapat dimaksimalkan dengan menggunakan adsorben yang memiliki spesifikasi potensi tertentu terhadap penyerapan kromium. Artikel ini me-review perbandingan metode adsorbsi batch dan kontinyu pada proses pengolahan kandungan kromium dalam limbah penyamakan kulit.The waste management issue is one of the biggest problems in the industries recently. Every industry has a high probability of releasing toxic by-product to the environment in the form of waste. One example is in the leather tanning industry. Leather tanning waste still removes harmful metals in its waste, such as heavy metal chromium (Cr). Chromium is used to produce finer skin products. About 30-40% chromium will be carried in the tanning liquid waste. The high chromium levels remaining and carried away in the waste can cause acute and chronic toxicity to the environment and even very harmful to living things. Adsorption is one of the highly recommended methods available to overcome this problem. Relatively low handling costs, simple processes, and the possibility of being recycled are some of the adsorption process's advantages. In addition, the adsorption process can be maximized by using adsorbents that have specific potential specifications for chromium absorption. This article reviews batch and continuous adsorption methods in the processing of chromium content in tannery waste.

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