We have to developed active microbial consortium that could be of higher degradation of crude oil contaminated groundwater, wastewater aeration pond and biopond at the oil refinery Terengganu Malaysia. Among four isolates that showed good growth only three different isolates (Acinetobacter faecalis WD2, Staphylococcus. sp DD3 and Neisseria elongate TDA4.) were selected based on the growth abili...

The present paper deals with the wastewater pond accident in Nagybánya (Romania) in 2000 of which the result was an about 100 tons of highly toxic cyanide spill into the River Tisza. Measurements and laboratory tests were performed during the toxic wave transport. On the basis of this data set mass balance calculations were performed by hydraulic and transport models to investigate and better u...

To summarize evidence discussed elsewhere in this volume, past climate change can be detected on time scales of decades to hundreds of millions of years. Theories as to the causes for such changes extend back almost as far as the observations. James Croll (1867) was the first to seriously examine the role 164 CLIMATE CHANGE, CAUSES

The purpose of this thesis is to elucidate the concept of chemical coagulation and its application in enhancing the performance of waste stabilization lagoons. The design and analysis of a pre-pond chemical precipitation system and an in-pond chemical precipitation system are presented, compared, and contrasted to an aerated lagoon system; the design of each system includes liquid and sludge tr...

Over the past 20 years, the new industrial cities were considered as the main solution to most of the problems facing the metropolitan industrial areas and to assist in the national industrial development. In these new communities, industrial and domestic activities result in the production of vast quantities of wastewater; the improper disposal of which may cause serious environmental hazards....

Algae, bacteria, and zooplankton were counted in samples drawn from 120- and 150-m high-rate algae ponds (those used for wastewater treatment). The fraction of nondegraded organic matter was estimated by comparing the ratio of biological and chemical oxygen demands and the bacterial, algal, and zooplankton counts to volatile suspended solids. With pond effluent quality at an acceptable level (a...

Slaughterhouse produce alot of contaminated waste. This study aims to determine the process waste management and test content wastewater in Regional Company Medan City. research was conducted from August September 2021. a descriptive quantitative laboratory tests were carried out. The population this 30 employees or workers at City slaughterhouse entire sampled because number relatively small. ...

Treated wastewater from Waste Stabilisation Ponds (WSPs) is a potential resource, especially in regional and remote areas facing water shortages. As the ultimate goal of reusing treated wastewater is ensuring that it is fit-for-purpose, the comprehensive assessment, management and communication of potential health risks are a necessity. Although not mandated by policy in Australia, Quantitative...

Waste stabilization ponds (WSP) have been used world-wide over the last 50 years for municipal and industrial wastewater. The waste water treatment system has been accepted and used to change the physical, chemical, or biological character of the waste. This article presents the characteristics, parameters, and examples of the waste stabilization ponds all over the world. This work was based on...