Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer

Ching, Yun Chen; Redzwan, Ghufran

doi:10.3390/su9071062

Cited by 60 publications

(25 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The TSS includes proteinous matter (myofibrillar proteins, collagen, gelatin, enzymes, soluble peptides, and amino acids) in soluble, colloidal, or particulate form (Islam et al, 2004). Ching and Ghufran (2017) reported 2.2% total solids (consisting up to 550 mg% TSS and 260 mg% dissolved solids), 50 mg% each of ammonia and nitrate nitrogen, and up to 100 mg% of phosphate typical effluent. Tuna processing effluents contained TSS, fat, chemical oxygen demand (COD), and biochemical oxygen demand (BOD) at 1,570, 450, 11,100, and 6,600 mg per lg, respectively (Achour et al, 2000).…”

Section: Loss Of Nutrientsmentioning

confidence: 99%

“…In the commonly used activated sludge system, the sludge consisting of an optimized, mixed flora of microorganisms degrades the organic materials in the presence of dissolved oxygen, thereby decreasing the BOD of the effluent (Gonzalez, 1995;Choudhury et al, 2010). An aerobic continuous bioreactor treated high saline fish processing wastewater for 8 h, which removed the offensive odor of the effluent (Ching and Ghufran, 2017). Anaerobic digestion (AD), a popular green technology for waste treatment, involves fermentation of the material in the absence of molecular oxygen with the formation of CO 2 , hydrogen, and/or acetic acid; reduction of the CO 2 and acetate leads to the production of methane.…”

Section: Microbe-mediated Bioconversionsmentioning

confidence: 99%

See 1 more Smart Citation

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Venugopal

2021

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

The seafood industry generates large volumes of waste. These include processing discards consisting of shell, head, bones intestine, fin, skin, voluminous amounts of wastewater discharged as effluents, and low-value under-utilized fish, which are caught as by-catch of commercial fishing operations. The discards, effluents, and by-catch are rich in nutrients including proteins, amino acids, lipids containing good proportions of polyunsaturated fatty acids (PUFA), carotenoids, and minerals. The seafood waste is, therefore, responsible for loss of nutrients and serious environmental hazards. It is important that the waste is subjected to secondary processing and valorization to address the problems. Although chemical processes are available for waste treatment, most of these processes have inherent weaknesses. Biological treatments, however, are environmentally friendly, safe, and cost-effective. Biological treatments are based on bioconversion processes, which help with the recovery of valuable ingredients from by-catch, processing discards, and effluents, without losing their inherent bioactivities. Major bioconversion processes make use of microbial fermentations or actions of exogenously added enzymes on the waste components. Recent developments in algal biotechnology offer novel processes for biotransformation of nutrients as single cell proteins, which can be used as feedstock for the recovery of valuable ingredients and also biofuel. Bioconversion options in conjunction with a bio-refinery approach have potential for eco-friendly and economical management of seafood waste that can support sustainable seafood production.

show abstract

Section: Loss Of Nutrientsmentioning

confidence: 99%

Section: Microbe-mediated Bioconversionsmentioning

confidence: 99%

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Venugopal

2021

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

show abstract

“…In general, the high-salinity wastewater does not exhibit high removal efficiencies with biological treatment systems. This is because the performances of biological treatment processes are adversely affected by the negative effects of salt on microbial flora [19]. Moreover, the TOC, which is used as an indicator of water pollution, was found to be 57.6 g/L.…”

Section: Characteristics Of Waste Soy Saucementioning

confidence: 99%

Advanced Oxidation Processes and Nanofiltration to Reduce the Color and Chemical Oxygen Demand of Waste Soy Sauce

2018

View full text Add to dashboard Cite

Currently, the ozone (O3) oxidation efficiency in the treatment of waste soy sauce provides 34.2% color removal and a 27.4% reduction in its chemical oxygen demand (COD). To improve the O3 oxidation efficiency, hydrogen peroxide (H2O2) is used to cause a H2O2/O3 process. In H2O2/O3 process experiments, a previously optimized pH of 11 and applied O3 dose of 50 mg L−1 were used and the H2O2/O3 ratio was varied between 0.1 and 0.9 in intervals of 0.2. The results show that an H2O2/O3 ratio of 0.3 results in the highest efficiencies in terms of color removal (51.6%) and COD reduction (33.8%). Nanofiltration (NF) was used to pretreat the waste soy sauce to improve color removal and COD reduction. The results showed that NF with an NE-70 membrane results in 80.8% color removal and 79.6% COD reduction. Finally, the combination of NF and H2O2/O3 process resulted in the best treatment efficiency: 98.1% color removal and 98.2% COD reduction. Thus, NF & H2O2/O3 process can be considered as one of the best treatment methods for waste soy sauce, which requires high intrinsic color removal and COD reduction efficiencies.

show abstract

“…For the best part, most MWW treatment facilities employ sand and membrane filtration, chlorination and UV disinfection with the aim of removing turbidity, pathogens, and nutrients [3]. These processes, however, do not remove dissolved salts from the wastewater streams and these end up in the environment causing devastating effects on the aquatic system, agricultural lands, surface and ground water, and downstream water treatment facilities [9,10].…”

Section: Introductionmentioning

confidence: 99%

Desalination of Municipal Wastewater Using Forward Osmosis

Ezugbe¹,

Tetteh²,

Rathilal³

et al. 2021

Membranes

View full text Add to dashboard Cite

Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of the world. Against this background, this study investigated forward osmosis (FO) in the removal of salts (chlorides, sulphates, and carbonates) and organics (chemical oxygen demand (COD), turbidity, total suspended solids (TSS), and color) from a synthetic municipal wastewater (MWW), mimicking secondary-treated industrial wastewater, at very low feed and draw solution flow rates (0.16 and 0.14 L/min respectively), using 70 g/L NaCl solution as the draw solution. The results obtained showed an average of 97.67% rejection of SO42− and CO32− while Cl− was found to enrich the feed solution (FS). An average removal of 88.92% was achieved for the organics. A permeation flux of 5.06 L/m2.h was obtained. The kinetics of the ions transport was studied, and was found to fit the second-order kinetic model, with Pearson’s R-values of 0.998 and 0.974 for Cl− and CO32− respectively. The study proves FO as a potential technology to desalinate saline MWW.

show abstract

Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer

Cited by 60 publications

References 46 publications

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Advanced Oxidation Processes and Nanofiltration to Reduce the Color and Chemical Oxygen Demand of Waste Soy Sauce

Desalination of Municipal Wastewater Using Forward Osmosis

Contact Info

Product

Resources

About