Dynamics of industrial waste stabilization pond treatment process

Abstract

Waste stabilization pond is an artificial ecosystem; its performance is governed by the nature of the biological communities it supports. These are primarily used as secondary effluent treatment plants to polish the effluents. However, they are also used to treat the raw sewage and industrial effluents. In the present study, the functioning of a waste stabilization pond system from an industrial complex located in Goa was taken up. The raw waste released by the industrial complex and the final effluent released from the stabilization ponds were analyzed for pH, dissolved oxygen (DO), biological oxygen demand, phosphate content, chlorophyll content, and algal diversity and density. Also, the activities of the enzymes catalase and phosphatase were measured. The study was carried out for a period of 1 year and the data covering pre-monsoon, monsoon, and post-monsoon seasons are tabulated. The study revealed that DO, chlorophyll content, and algal count were maximum during pre-monsoon when compared to monsoon and post-monsoon. Similarly, maximum enzymatic activity was recorded during pre-monsoon and also maximum removal of biological oxygen demand and phosphate was recorded during this period than in monsoon and post-monsoon.

Insights to bioprocess and treatment competence of urban wetlands

“…(>20 mm) in the pre monsoon period. Euglenoides are indicators of organic matter accumulation (Veeresh et al, 2009). During monsoon and post monsoon periods, the algal blooms at Bellandur Lake with higher abundance of Chlorophycean members act as inoculum for Varthur Lake.…”

“…The changes in the community structure also affect the treatment potential (Kayombo et al, 2002;Tarlan et al, 2002;Kirkwood et al, 2003). The most tolerant and resistant micro flora constitute community assemblage, in urban wetlands with high influx of untreated domestic wastewaters loads (Timothy, 2000;Mahapatra et al, 2011a)/ treatment plant effluents (Mahapatra et al, 2013a,b;Mahapatra et al, 2014;, landfill leachate (Naveen et al, 2017) and industrial effluents (Veeresh et al, 2009;Ramachandra et al, 2012).…”

Oxidation pond for municipal wastewater treatment

“…Second, ponds can be used for the purpose of 'polishing,' or providing additional treatment to what has been found within conventional treatment methods (Veeresh et al 2010). Various authors have conducted studies using oxidation ponds and other treatment methods such as anaerobic digestion (Gumisiriza et al 2009), upflow anaerobic sludge blanket (Mungraya and Kumar 2008), membranes , and reverse osmosis (Lado and Ben-Hur 2010).…”

Determination of Algae and Macrophyte Species Distribution in Three Wastewater Stabilization Ponds Using Metagenomics Analysis

“…By understanding the species profile and distribution during algal blooms in open systems, a tailored approach to controlling these blooms may be developed [7]. Within naturalized wastewater treatment systems such as wastewater stabilization ponds (WSPs), this would require maintaining a balance between supporting desired algae growth for nutrient removal and oxygen production, and limiting excessive algae growth, which can lead to increases in pH, limit the effectiveness of aerobic oxidation by bacteria, and prevent light and energy penetration to the lower depths of the water column [8][9][10][11].…”