Dairy wastewater management in EU: Produced amounts, existing legislation, applied treatment processes and future challenges

2022 ◽  
Vol 303 ◽  
pp. 114152
Author(s):  
Athanasios S. Stasinakis ◽  
Panagiotis Charalambous ◽  
Ioannis Vyrides
Keyword(s):  
Dairy Wastewater ◽  
Wastewater Management ◽  
Treatment Processes ◽  
Future Challenges

Hierarchical prioritization of innovative treatment systems for sustainable dairy wastewater management

2016 ◽  
Vol 112 ◽  
pp. 4605-4617 ◽  
Author(s):  
Coskun Aydiner ◽  
Unal Sen ◽  
Derya Y. Koseoglu-Imer ◽  
Esra Can Dogan
Keyword(s):  
Dairy Wastewater ◽  
Wastewater Management ◽  
Innovative Treatment

scholarly journals Case study on the dairy processing industries and their wastewater generation in Latvia

2021 ◽  
pp. 1-4
Author(s):  
Basanti Ekka ◽  
Sandis Dejus ◽  
Talis Juhna
Keyword(s):  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Oxygen Demand ◽  
Production Quality ◽  
Dairy Wastewater ◽  
Wastewater Management ◽  
Municipal Wastewater Treatment ◽  
Dairy Processing ◽  
Quality Of Water ◽  
High Chemical Oxygen Demand

Abstract The objective of the research presented in this Research Communication was to access the environmental impact of the Latvian dairy industries. Site visits and interviews at Latvian dairy processing companies were done in order to collect site-specific data. This includes the turnover of the dairy industries, production, quality of water in various industrial processes, the flow and capacity of the sewage including their characteristic, existing practices and measures for wastewater management. The results showed that dairy industries in Latvia generated in total approximately 2263 × 103 m3 wastewater in the year 2019. The Latvian dairy effluents were characterized with high chemical oxygen demand (COD), biological oxygen demand (BOD) and total solids (TS). Few dairy plants had pre-treatment facilities for removal of contaminants, and many lacked onsite treatment technologies. Most facilities discharged dairy wastewater to municipal wastewater treatment plants. The current study gives insight into the Latvian dairy industries, their effluent management and pollution at Gulf of Riga due to wastewater discharge.

Graphene Oxide Membrane: Recent Advancement in Waste Water Treatment and its Applications

2020 ◽  
Vol 5 (2) ◽  
pp. 111-157
Author(s):  
Nusrat Sahiba ◽  
Pankaj Teli ◽  
Prakash Prajapat ◽  
Shikha Agarwal
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Current Status ◽  
Future Research ◽  
Wastewater Management ◽  
Challenges And Opportunities ◽  
Future Challenges ◽  
Potential Applications ◽  
Oxide Membrane

World water resources are barely alive due to various factors such as rise in population, adverse changes in the environment and the effects of pollutants, which increase the demand for fresh-water. Numerous techniques have been developed to solve the problem of water inadequacy, but most of them are adverse with respect to the environment and economy. Graphene-oxide (GO) nanopore materials may be an effective solution for water-purification due to its properties of easy fabrication and modification. This next-generation membrane has high waterflux, selectivity, and permeability to selected molecules. In this discussion, we have covered the latest technologies and potential applications of GO for waterpurification, which shall help researchers to get quick ideas for future research to design and fabricate multi-layered GO membranes. This article gives a snapshot of current status and proposed strategies of graphene-membranes for water treatment with earlier information to wastewater management and stimulated progress in this area from 2017 to date. The future challenges and opportunities in this field have also been highlighted.

scholarly journals Characteristics and performance of small and medium wastewater treatment plants in Greece

2017 ◽  
Vol 12 (3) ◽  
pp. 520-533
Author(s):  
E. Gavalakis ◽  
P. Poulou ◽  
A. Tzimas
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Organic Load ◽  
Wastewater Management ◽  
Effluent Quality ◽  
Future Challenges ◽  
And Performance

Wastewater management in Greece is being regulated by the Urban Waste Water Treatment Directive (UWWTD) and as a result many wastewater treatment plants (WWTPs) have been constructed during the last 30 years and are in operation. The present work aims to outline the progress regarding the implementation of the specific environmental policy, present deficiencies and future challenges, while an evaluation of the performance is conducted for small-medium and large WWTPs focusing on the influent and effluent quality characteristics. In Greece the existing level of treatment provided is related to secondary treatment for the removal of organic load, which in most cases is supplemented by nitrogen removal (for more than 85% of the WWTPs) and phosphorus removal. With respect to the characteristics of the raw municipal wastewater these correspond to typical low to medium strength sewage. Compliance to the UWWTD effluent standards for BOD5, COD and SS is achieved in more than 90% of the WWTPs, while in terms of nutrients, 80% of the WWTPs efficiently remove nitrogen and approximately 45% of the WWTPs remove phosphorus.

scholarly journals Available Techniques of Wastewater Management Practices in Indian Tanneries: A Literature Review

2021 ◽  
Vol 9 (2) ◽  
pp. 491-498
Keyword(s):  
Systematic Review ◽  
Wastewater Treatment ◽  
Management Practices ◽  
Meta Analysis ◽  
Primary Treatment ◽  
Wastewater Management ◽  
Electronic Database ◽  
Treatment Practices ◽  
Treatment Processes ◽  
Aerobic And Anaerobic

Tanning is the process of turning animal hide into leather. The manufacturing process leads to the generation of wastewater, which must be treated before discharge. The treatment processes of this wastewater in India was examined. A systematic review based on Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines was carried out on the electronic database Google Scholar from 2010 to 2020. Wastewater treatment practices in Indian tanneries were looked for and 64 relevant reports and articles were shortlisted and studied. The results showed that coagulation with alum and ferric chloride gave the best results in primary treatment, aerobic and anaerobic processes gave the best results when combined, and tertiary treated water could be reused.

A practitioner’s perspective on the uses and future developments for wastewater treatment modelling

2011 ◽  
Vol 63 (3) ◽  
pp. 516-526 ◽  
Author(s):  
G. T. Daigger
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Management ◽  
Treatment Processes ◽  
Software Packages ◽  
Process Chemistry ◽  
Treatment Models ◽  
Project Life Cycle ◽  
Water Association ◽  
Effective Models ◽  
Project Life

The modern age of wastewater treatment modelling began with publication of the International Water Association (IWA) Activated Sludge Model (ASM) No.1 and has advanced significantly since. Models are schematic representations of systems that are useful for analysis to support decision-making. The most appropriate model for a particular application often incorporates only those components essential for the particular analyses to be performed (i.e. the simplest model possible). Characteristics of effective models are presented, along with how wastewater modelling is integrated into the wastewater project life cycle. The desirable characteristics of wastewater treatment modelling platforms are then reviewed. Current developments of note in wastewater treatment modelling practice include estimates of greenhouse gas emissions, incorporating uncertainty into wastewater modelling and design practice, more fundamental modelling of process chemistry, and improved understanding of the degradability of wastewater constituents in different environments. Areas requiring greater emphasis include increased use of metabolic modelling, characterisation of the hydrodynamics of suspended and biofilm biological treatment processes, and the integration of biofilm and suspended growth process modelling. Wastewater treatment models must also interface with water and wastewater management software packages. While wastewater treatment modelling will continue to advance and make important contributions to practice, it must be remembered that these are complex systems which exhibit counter-intuitive behaviour (results differ from initial expectations) and multiple dynamic steady-states which can abruptly transition from one to another.

scholarly journals Wastewater management approach in an industrial park

2018 ◽  
Vol 2017 (2) ◽  
pp. 546-551 ◽  
Author(s):  
J. Liu ◽  
M. Tang
Keyword(s):  
Wastewater Treatment ◽  
Treatment Plant ◽  
Management Approach ◽  
Wastewater Management ◽  
Management Framework ◽  
Treatment Processes ◽  
Industrial Parks ◽  
Analytical Protocol ◽  
Treatment Facilities ◽  
Centralized Wastewater Treatment

Abstract Many industrial parks adopt a two-tier wastewater management framework whereby tenants and the park are required to build satellite and centralized wastewater treatment facilities, respectively. Due to the diversity of industrial wastewaters, the treatment process scheme in the public centralized wastewater treatment plant (WWTP) may not suit the characteristics of all effluents discharged from the tenants. In consideration of varying wastewater biodegradability, the treatment scheme in a centralized WWTP is advised to install two series of treatment processes. In detail, various effluents from the tenants shall be commingled according to their levels of biodegradability. For the non-biodegradable streams, advanced oxidation processes shall be applied in addition to biological treatments. To facilitate the grouping of effluents, each effluent will be evaluated for its biodegradability. An analytical protocol derived from OECD standard (TG302B) was developed and found effective for biodegradability assessment. A case study is described in this paper to showcase the methodology.

ACE2 as therapeutic agent

2020 ◽  
Vol 134 (19) ◽  
pp. 2581-2595
Author(s):  
Qiuhong Li ◽  
Maria B. Grant ◽  
Elaine M. Richards ◽  
Mohan K. Raizada
Keyword(s):  
Therapeutic Agent ◽  
Renin Angiotensin System ◽  
Peptide Hormone ◽  
Experimental Models ◽  
Electrolyte Balance ◽  
Ang Ii ◽  
Angiotensin Converting Enzyme 2 ◽  
Beneficial Effects ◽  
Overwhelming Evidence ◽  
Future Challenges

Abstract The angiotensin-converting enzyme 2 (ACE2) has emerged as a critical regulator of the renin–angiotensin system (RAS), which plays important roles in cardiovascular homeostasis by regulating vascular tone, fluid and electrolyte balance. ACE2 functions as a carboxymonopeptidase hydrolyzing the cleavage of a single C-terminal residue from Angiotensin-II (Ang-II), the key peptide hormone of RAS, to form Angiotensin-(1-7) (Ang-(1-7)), which binds to the G-protein–coupled Mas receptor and activates signaling pathways that counteract the pathways activated by Ang-II. ACE2 is expressed in a variety of tissues and overwhelming evidence substantiates the beneficial effects of enhancing ACE2/Ang-(1-7)/Mas axis under many pathological conditions in these tissues in experimental models. This review will provide a succinct overview on current strategies to enhance ACE2 as therapeutic agent, and discuss limitations and future challenges. ACE2 also has other functions, such as acting as a co-factor for amino acid transport and being exploited by the severe acute respiratory syndrome coronaviruses (SARS-CoVs) as cellular entry receptor, the implications of these functions in development of ACE2-based therapeutics will also be discussed.

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