Wastewater management in a dairy farm

1995 ◽  
Vol 32 (11) ◽  
pp. 1-11 ◽  
Author(s):  
Mohamed F. Hamoda ◽  
Saed M. Al-Awadi
Keyword(s):  
Wastewater Treatment ◽  
Waste Treatment ◽  
Dairy Farm ◽  
Primary Treatment ◽  
Treatment System ◽  
Wastewater Management ◽  
Batch Reactors ◽  
Wastewater Treatment System ◽  
Treated Effluent ◽  
Treatment Facilities

Field sampling and laboratory experimentation were conducted on wastewater effluent generated at a dairy farm in order to characterise the wastewater, evaluate existing primary treatment facilities, and examine an appropriate wastewater treatment system to produce good quality effluents. It has been found that the farm contributes effluents containing considerable loads of organics, solids and nutrient pollutants. Existing treatment facilities which are limited to batch-operated primary settling tanks, are not capable of producing good quality effluent. Experimentation on an aerobic, suspended growth, biological system using sequencing batch reactors (SBR) indicated that the pollutant loads in the primary-treated effluent could be substantially reduced. The study showed that a wastewater treatment system involving primary settling tanks combined with additional aerobic biological treatment is capable of removing about 94% COD and 96% SS from the farm effluents. This system could be easily integrated and coordinated with existing facilities. A wastewater management scheme has been proposed to include waste minimisation, waste treatment and effluent reuse in irrigation.

scholarly journals Process performance and reuse potential of a decentralized wastewater treatment system

2019 ◽  
Vol 80 (11) ◽  
pp. 2079-2090 ◽  
Author(s):  
Rajiv Ranjan ◽  
Lokendra Kumar ◽  
P. C. Sabumon
Keyword(s):  
Wastewater Treatment ◽  
Growth Parameters ◽  
Oxygen Demand ◽  
Primary Treatment ◽  
Treatment System ◽  
Tagetes Erecta ◽  
Wastewater Treatment System ◽  
Decentralized Wastewater Treatment ◽  
Treated Effluent ◽  
Decentralized Wastewater Treatment System

Abstract The paper describes briefly the process performance and the reuse potential of a laboratory scale wastewater treatment system. The treatment involves enhanced primary treatment of Vellore Institute of Technology (VIT) campus sewage using ferric chloride as a coagulant, anaerobic digestion of coagulated organics, and biofilm aerobic process. The treated effluent after disinfection (using sunlight and chlorine) was used for irrigation of Tagetes erecta (marigold) plants and the plant growth parameters were evaluated for a life span of 3 months. In the primary treatment, an optimum ferric chloride dose of 30 mg/L could remove turbidity, chemical oxygen demand (COD), biochemical oxygen demand (BOD), and bacterial count (Escherichia coli) of 69%, 60%, 77%, and 55%, respectively. The coagulated organics could digest in a 25 L anaerobic reactor effectively with methane content in biogas varied between 50 and 60% and enhanced volatile suspended solids (VSS) reduction up to 70%. Sunlight based photo-oxidation followed chlorine disinfection saved 50% of the chlorine dose required for disinfection and treated effluent was fit for reuse. The results of growth parameters for Tagetes erecta plants indicate that anaerobically digested sludge is an excellent soil conditioner cum nutrient supplier. The results of this study exhibit a promising reuse potential of a decentralized wastewater treatment system and needs to be promoted for field scale applications.

Ecological wastewater treatment system: Management approach to solve sanitation and water problems

2021 ◽  
Vol 7 (1) ◽  
pp. 80-86
Keyword(s):  
Wastewater Treatment ◽  
Water Reuse ◽  
Environmental Concern ◽  
Cost Effective ◽  
Treatment System ◽  
Management Approach ◽  
Wastewater Management ◽  
Vegetation Growth ◽  
Social Growth ◽  
Wastewater Treatment System

Wastewater contains various types of pollutants, such as nutrients, solids, organic carbon, metals, inorganic salts, pathogens, etc. Therefore, effective wastewater treatment is crucial for public health as well as for environmental concern. On the other hand, water management with limited water resources is a great challenge in most countries. The freshwater shortage is seriously affecting the economic and social growth of developing nations. An ecological wastewater treatment system is a concept towards ecologically and economically sounds wastewater management. Water and organic nutrients in wastewater consider as a resource and can reuse and recycle in agriculture. The study reviewed the principles and concepts of the ecological wastewater treatment system and a case study of the ecological treatment system by growing economic vegetation. A hybrid constructed wetland (CW) system was used to investigate the performance. The CW system showed high removal efficiency for TP (total phosphorus), NH4 (ammonium), and TN (total nitrogen). The removal efficiencies were 97%, 75%, and 64% for TP, NH4-N, and TN, respectively. Ecological wastewater treatment system is cost-effective, and energy-saving also offers nutrients recycling, water reuse, recreation activities, and vegetation growth.

Development of an ecologically sustainable wastewater treatment system

2008 ◽  
Vol 58 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Lokendra Kumar ◽  
Rajiv Ranjan ◽  
P. C. Sabumon
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Primary Treatment ◽  
Treatment System ◽  
Optimum Dose ◽  
Digested Sludge ◽  
Soil Conditioner ◽  
Treated Water ◽  
Wastewater Treatment System ◽  
Ecologically Sustainable

The present study aimed mainly for the development of a wastewater treatment system incorporating enhanced primary treatment, anaerobic digestion of coagulated organics, biofilm aerobic process for the removal of soluble organics and disinfection of treated water. An attempt was also made to study the reuse potential of treated water for irrigation and use of digested sludge as soil conditioner by growing marigold plants. Ferric chloride dose of 30 mg/l was found to be the optimum dose for enhanced primary treatment with removals of COD and BOD to the extent of 60% and 77%, respectively. Efficient anaerobic digestion of ferric coagulated sludge was performed at 7 days hydraulic retention time (HRT). Upflow aerobic fixed film reactor (UAFFR) was very efficient in removals of COD/BOD in the organic loading rate (OLR) range of 0.25 to 3 kg COD/m3/day with COD and BOD removals in the range 65–90 and 82–96, repectively. Photo-oxidation followed by disinfection saved 50% of chlorine dose required for disinfection of treated effluent and treated water was found to be suitable for irrigation. The result also indicated that anaerobically digested sludge may be an excellent soil conditioner. From the results of this study, it is possible to conclude that the developed wastewater treatment system is an attractive ecologically sustainable alternative for sewage treatment from institutional/industrial/residential campuses.

scholarly journals Pengelolaan Air Limbah Hotel Dan Pemanfaatannya Dalam Pembangunan Pariwisata Berkelanjutan

2019 ◽  
Vol 7 (2) ◽  
pp. 339
Author(s):  
Septi Ayu Andini ◽  
I Nyoman Sukma Arida
Keyword(s):  
Waste Water ◽  
Water Management ◽  
Wastewater Treatment ◽  
Waste Treatment ◽  
Tourism Development ◽  
International Standards ◽  
Treatment System ◽  
Primary Data ◽  
Wastewater Treatment System ◽  
Waste Water Management

Nusa Dua tourism area shaded by PT. Indonesia Tourism Development Corporation (ITDC) has been known as a center of international tourism area that reflects the characteristics of international standards for all facilities built. ITDC has an integrated wastewater treatment system called "Lagoon", which accommodates all waste from tourism and hotel activities in Nusa Dua Tourism Area to be reused. It is interesting to investigate because in the future this research can be a study material in waste water management produced by tourism accommodation, so that environmental pollution generated by wastewater disposal from tourism activities can be minimized. The research method used in this research is qualitative data analysis technique to know how waste water management of hotel in ITDC. Data source, from primary data and secondary data. Data collection techniques using observation methods, interviews, documentation and research instruments in the form of interview guidelines. Determination of informants in this study using purposive sampling. The results obtained are the existing condition of hotel wastewater treatment in Lagoon and its utilization is seen from the wastewater treatment system, irrigation water production system, the amount of clean water and waste generated, the efficiency of wastewater treatment and the utilization produced by wastewater treatment. Keywords: Accommodation, Waste Treatment, Sustainable Tourism Development

Performance of hybrid small wastewater treatment system consisting of jet mixed separator and rotating biological contactor

1997 ◽  
Vol 35 (6) ◽  
pp. 63-70 ◽  
Author(s):  
Yoshimasa Watanabe ◽  
Yoshihiko Iwasaki
Keyword(s):  
Wastewater Treatment ◽  
Electric Power ◽  
Hybrid System ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Treatment System ◽  
Municipal Wastewater Treatment ◽  
Wastewater Treatment System ◽  
Pre Treatment ◽  
Organic Particles

This paper describes a pilot plant study on the performance of a hybrid small municipal wastewater treatment system consisting of a jet mixed separator(JMS) and upgraded RBC. The JMS was used as a pre-treatment of the RBC instead of the primary clarifier. The treatment capacity of the system was fixed at 100 m3/d, corresponding to the hydraulic loading to the RBC of 117 L/m2/d. The effluent from the grid chamber at a municipal wastewater treatment plant was fed into the hybrid system. The RBC was operated using the electric power produced by a solar electric generation panel with a surface area of 8 m2 under enough sunlight. In order to reduce the organic loading to the RBC, polyaluminium chloride(PAC) was added to the JMS influent to remove the colloidal and suspended organic particles. At the operational condition where the A1 dosage and hydraulic retention time of the JMS were fixed at 5 g/m3 and 45 min., respectively, the average effluent water quality of hybrid system was as follows: TOC=8 g/m3, Total BOD=8 g/m3, SS=8 g/m3, Turbidity=6 TU, NH4-N=7 g/m3, T-P=0.5 g/m3. In this operating condition, electric power consumption of the RBC for treating unit volume of wastewater is only 0.07 KWH/m3.

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