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princeton piggyback parts manualTo browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. You can download the paper by clicking the button above. Get started with a FREE account. The second best time is now. ” ? Chinese Proverb McGraw - Hill's Essential English.Created by test-preparation.Get books you want. To add our e-mail address ( ), visit the Personal Document Settings under Preferences tab on Amazon. We'll e-mail you with an estimated delivery date as soon as we have more information. Your account will only be charged when we ship the item. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Please try again.Please try again.Please try again. Please try your request again later. It facilitates access to those design guides by providing concise information from them and enabling the reader to quickly locate additional information by following direct references. This publication is written for students and design professionals familiar with wastewater treatment concepts, the design process, plant operations, and the regulatory basis of water pollution control. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. Register a free business account Since 1928, WEF and its members have protected public health and the environment. As a global water sector leader, our mission is to connect water professionals; enrich the expertise of water professionals; increase the awareness of the impact and value of water; and provide a platform for water sector innovation.Full content visible, double tap to read brief content. Videos Help others learn more about this product by uploading a video. Upload video To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average.http://coko-sochi.ru/userfiles/cummins-isx-manual-regen.xml
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Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. The criteria are being considered in this design for wastewater treatment plant (WWTP) Al-Hay. Moreover, the characteristics of physical, chemical and biological wastewater also are described. Based on the population of Al-Hay city, the project is undertaken to design a wastewater treatment plant. Modelling using GPS X also has been done on this data. It is exhibited a typical diagram of WWTP staring with influent flow, aeration tank and settling (clarifier) tank. The simulation time is also illustrated. With increasing the time, the parameters such as TSS and solids are typically enhanced. This is as indicator to improve the fit of the model and the actual data for the secondary effluent TSS. The research shows the treatment process design of Al-Hay wastewater treatment plant (WWTP). The paper also described the equations process design for WWTP. Sludge age (?c) has been calculated and associated to the observed yield (Yobs). There is correlation between sludge age and the mixed liquor suspended solid (MLSS).The criteria are being considered in this design for wastewater treatment plant (WWTP) Al-Hay. Moreover, the characteristics of phy- sical, chemical and biological wastewater also are described. Based on the popu- lation of Al-Hay city, the project is undertaken to design a wastewater treatment plant. With increasing the time, the para- meters such as TSS and solids are typically enhanced. Sludge age (?c) ABOUT THE AUTHOR Nuralhuda Aladdin Jasim This is a short sum- mary in which the author (Nuralhuda Aladdin Jasim) uses GPS X modelling for design waste- water treatment in Al-Hay city. The criteria also are considered in this research during the design of wastewater treatment plant. Also, the aim of this paper is to verify the treatment process design of Al-Hay wastewater treatment plant (WWTP).http://bmdmi-media.org/editoruploads/cummins-isx-manual-download.xml The author’ activities are to work on nanotechnologies technique. The papers have been published based on nanoparticles in which investigating the properties of natural organic matter affect the impact of nanoparticles on plants, the dispersion of nanoparticles and their effect on plants and other researches paper regarding to nanoparticles area. The author also is interested in water treatment using different coagulants either natural or synthetic coagu- lants used in water treatment. She is very inter- ested in GIS technique by doing spatial analysis of forest biomass in some state located in dif- ferent areas. PUBLIC INTEREST STATEMENT The aim of our paper is to verify the treatment process design of Al-Hay wastewater treatment plant (WWTP), taking into account some charac- teristics occur in that city. Designing a WWTP depends on the characteristics of the wastewater so the designing process should be analysed carefully because even a small mistake can be fatal. The paper can be beneficial for public area especially in Iraq. Design wastewater treat- ment plant can reduce the amount of waste that is usually released into the environment. By doing so, the reduction in the health risks associated with environment pollution thus improving envir- onment’s health. Wastewater treatment is essential to remove the suspended solids as much as before the effluent is discharged back to the environment. Design WWTP is utilised to pur- ify contaminated substances such as solid, liquid and semi-solids. The article has the potential impact in wider level in which designing a WWTP with immunizing the mistakes in the results.There is correlation between sludge age and the mixed liquor suspended solid (MLSS).https://formations.fondationmironroyer.com/en/node/11750 While developed countries are continuing working on setting more efficient treatment processes in the WWTP or establishing new technologies to meet the increasing demand for water, the developing countries are still straggling to establish the required infrastructure for treatment. Current outreach programs in these countries are still limited and not operative. Problem of improper wastewater treatment is acute in countries suffering crisis like Iraq. Decades of wars and sanctions in Iraq combined with limited environmental awareness in both public and governmental repre- sentatives, have highly contributed to the destruction of Iraq’s national water system. According to the United Nations report, six million people have no access to clean water and more than 500,000 Iraqi children access their water from a river or creek and that over 200,000 access their water from open wells. In the first six months of 2010, there were over 360,000 diarrhoea cases as a result of polluted drinking water and a lack of hygiene awareness among local communities, particularly vulnerable groups such as women and children. The report showed that “Every day at least 250,000 tonnes of raw sewage is pumped into the Tigris River threatening unprotected water sources and the entire water distribution system”. Currently, the lack of permanent govern- mental programs for environment protection, lack of expenses, unavailability of professionals, engineers, and skilled operators, unprofessional design and treatment of most of existing plants, and lack of public awareness about the danger of direct discharge of wastewater to water courses had led to serious deficiencies in operations in the country’s wastewater treatment plants. Most of these plants were not designed based on a proper local data and were constructed by inexper- ienced companies.https://datavoiz.com/images/carousel-microwave-manual.pdf In addition to the improper design and implementation, the mechanical and electrical equipment at these plants have suffered from lack of spare parts and no preventative maintenance due to lack of.In many cases, untreated raw sewage is directly discharged into Rivers, endangering the health of residents and downstream populations. Conventional wastewater treatment consists of a combination of physical and biological processes to remove solids, organic matter and nutrients from wastewater. However, the key treatment process in the conventional sewage treatment is the secondary treatment process, which consists of biological treatment by utilizing mixed types of microorganisms Jasim, Cogent Engineering (2020), 00: 1723782 Page 2 of 32 Several aerobic and anaerobic biological processes are used for second- ary treatment, including activated sludge process, total oxidation process, contact stabilization, aerated lagoons, waste stabilization ponds, trickling filters and anaerobic treatment. Activated sludge process is the most widely applied process comparable to other biological process for its facility design is well known as well as having characterized operation parameters (Culp, 1978). This research is to explain the physical, chemical and biological properties of wastewater. Secondly, it is to design some parts of wastewater treatment plant in Al-Hay station. Therefore, the study of wastewater properties are important regarding to the biological and chemical waste- water treatment processes, which include (aerobic treatment such as (oxidation ponds and activated sludge) and anaerobic treatment. Also, the chemical wastewater treatment processes include chemical precipitation (coagulation and flocculation), ion exchange, neutralization and adsorption. Thus, studying the properties of wastewater has to be investigated because all important in terms of plant layout, plant design, plant sizing and plant location. In this study, it describes the process of preliminary design; secondary design is done based on extended aeration activated sludge system. This system is commonly used is Iraq because it is known technology with less expensive sludge treatment requirement and it can satisfy the standards criteria for effluent disposal to surface water. Finally, chlorination unit is a common method for pathogen reduction. Moreover, modelling and simulation of the process of design Al-Hay station is performed by GPS X program with some parameters. 2. The characteristics of wastewater The first important information should have for the design of wastewater treatment system is the strength and characteristics of the wastewater to be treated. The strength of wastewater is normally expressed in terms of pollution load, which is determined from the concentrations of significant physical, chemical and biological contents of the wastewater ? (Davis and Cornwell, 2008). The characteristics or the quality of wastewater is expressed in terms of its physical, chemical and biological characteristics on the basis of the parameters given in the table below. Characteristics of wastewater depend on the quality of water used by the community, conservation practice and culture of population, type of industries present and treatment given by industries and their wastewater. Many of the above parameters are interrelated. For example, the concentration of dissolved gases and microbial activities in wastewater are affected by temperature. One of the most important physical characteristics of wastewater is its content of solids, which consists of floating matter, sediment, suspended material and soluble matter. Plants Colour Inorganic contents Alkalinity, chlorides, nitrogen, sulphur, phosphorous, heavy metals, PH, carbohydrates, etc. Odour Gases Oxygen, methane, hydrogen sulphide Protista Temperature Pathogenic organisms Viruses Jasim, Cogent Engineering (2020), 00: 1723782 Page 3 of 32 In addition, for chemical characteris- tics, it includes organic materials and inorganic substances. Organic substances consist of a mixture of carbon, hydrogen, oxygen, and sometimes nitrogen, as well as other important elements such as sulphur, phosphorus and iron. Regarding to organic substances, many inorganic indicators of wastewater are important for the development and control of wastewater quality standards. It is a mixture of toilet water, washing water, ice, bathing, washing clothes, and all cleaning work at home, institutions, streets and rainwater. It consists of more than 95 percent water, only 5 of pollutants of different types, nature and quantity. This diversity in the sources it generates leads to the multiplicity of types of contaminants it contains. Wastewater contains organic matter, trace microorganisms, salts, minerals, ammonia, pesticide residues, residues of pharmaceutical drugs and their metabolites, and highly toxic chemical pollutants for disruption of the endocrine system. Among all this diversity of pollutants, heavy metals and pathogens can be considered the most serious to public health and the environment. Nitrate and phosphorus are an important contaminant if the water after treatment is thrown into the surface and sea water media, leading to nutrient contamination, which in turn disrupts water quality and affects aquatic organisms by significantly reducing the dissolved oxygen content. They are acceptable substances, but nutrients if the goal is to use treated water in agricultural irrigation. The contamination of water is considered a crucial issue, thus the achieve- ment of water purification is needed to reduce nutrient contamination. In Karkush, Abdul Kareem, and Jasim (2018) studys’, it is shown the lateral load-bearing capacity of a single pile and piles group calculations that it was installed in contaminated claying soil. Two-line slopes intersection method and a proposed model are utilized in pile foundation calculations. The results showed that the increasing of the number of loading cycles is presented by the decreasing of the ultimate lateral capacity. In addition, the concentration of contaminant in the soil increased with the decreasing of the ultimate lateral capacity (Karkush et al., 2018). Kim, Jung, and Han (2019) study showed that water purification can be achieved by using ABFT system (autotrophic biofloc technology). The power of ABFTsystem at the remaining stages (seedling to adult farming) was demonstrated for industrial-level implementation. An excellent water purification effect and about 97 reduction of water conservation were presented two by microalgae. The wastewater from the ABFT system can be reused by use for the growth of different plants (Kim et al., 2019). In Feyzbakhsh, Telvari, and Lork (2017 ? ) study, it is presented the delay in some project in Tehran City regarding to the three factors which are quality, cost and time. As some circumstances happed in the last decades such as climate change, enhancement of population, decrease of raining, as well as increasing in water harvesting from groundwater, thus the importance of water is intensified as the project of water and wastewater treatment. Based on this study, it is verified that some factors contributed in the delay of wastewater treatment projects such as uncertainty and buying project site and failure in paying to contractor and employers (Feyzbakhsh et al., 2017). In Parsa, Khajouei, Masigol, Hasheminejad, and Moheb (2018) study’, it is investigated that a new technique is used to reduce the electrical conductivity (EC) of composting leachate-polluted water using electrodialysis (ED) process. In this experimental study, the removal of COD is shown a reduction. The decreasing in COD removal is improved by the increasing of applied voltage, Jasim, Cogent Engineering (2020), 00: 1723782 Page 4 of 32 This study showed an acceptable ED method to reduce salt and organic content (Parsa et al., 2018). Wastewater treatment is designed to improve water quality to meet the specific safety and safety requirements of the wastewater after treatment. Different treatment processes reduce the concentration of pollutants in water. It reduces the content of suspended solids, whose molecules can contaminate the rivers and impede the movement of water in the channels and pipes after deposition. It also reduces the content of biodegradable organic matter, measured by the Biological Oxygen Demand BOD (BOD) index (Ronan et al., 2019). Treatment processes can also remove or neutralize many industrial pollutants and toxic chemi- cals. In principle, processes of industrial waste and toxic chemicals treatment should be carried out in the same industrial establishments, and should not be dumped in sewage sewers without treatment, and without complying with the regulations on the specifications of industrial effluents allowed in sewerage. In the area of wastewater management and treatment, we talk about three main levels of treatment, each of which involves a range of processes and targets a specific type of contaminant present in the water. There are those who talk about two additional processes, one at the beginning and one at the end, and the number of treatments becomes five. For the treatment processes, it starts with preliminary treatment units. This phase involves the removal of large solid objects through the use of nets to capture and remove them, as well as the deposition of sand and gravel by passing water when entering the station through a hole where heavy solids fall before proceeding to the next stage. The initial and primary treatment process removes about 25 of organic matter load and theoretically removes all inorganic solids and for water containing industrial effluents. It may be necessary to balance flows and adjust.It includes unit operations such as: screen, grit chamber and equalization basin. Additionally, for the primary treatment, it is including primary sedimentation the purpose of this unit is to remove the settle able organic solids. Primary sedimentation (or clarification) is achieved in large basins under relatively quiescent conditions. The settled solids are collected by mechanical scrapers into hopper, from which they are pumped to sludge—processing area oil, grease and other floating materials are skimmed from the surface. The effluent is discharged over weirs into a collection trough. There are some types of clarifiers. Also, the common types of horizontal flow clarifiers are rectangular, square, or circular. On the other hand, the types of include surface are tube settler and parallel plate settler. In general, the design of most of the clarifiers falls into three categories: (1) Horizontal flow, (2) solids contact and (3) inclined surface. The main objective of this phase of treatment is to obtain a homogeneous liquid that can be biologically processed at later stage, on the one hand, and one the other hand, obtainable and around to be treated separately. Sedimentation ponds are usually equipped with mechanical equipment that helps to collect the mud in the pelvic floor, and from there it is pumped to the treatment in subsequent stages. As well as to remove the floating material and dispose of the treated water stream. As well as, the mechanical equipment is to transfer homogeneous water to the next stages of treatment. As this initial stage, some chemicals are used to help the materials Jasim, Cogent Engineering (2020), 00: 1723782 Page 5 of 32 The mulch is derived from primary treatment, the primary mulch. Primary treatment is the first phase of treatment, followed by other processes. It is divided into: floating basins and deposition basins. After that, secondary treatment is required. The purpose of secondary treatment is to remove the soluble organics that escape the primary treatment and to provide further removal of sus- pended solids. Secondary treatment may remove than 85 of the organics. Additionally, rand suspended solids, it does not remove significant amount of nitrogen, phosphor heavy metals, no degradable organics, bacteria and viruses. These pollutants may require further removal (advanced one) (Soomaree, 2015). This treatment can remove more than 90 of the organic matter found in wastewater through bioremediation processes. It also removes dissolved organic matter, which evaporates from the initial treatment phase. The process of biological treatment is carried out by groups of micro- organisms that consume organic matter as their food and turn it into the end products of metabolism, carbon dioxide, water and energy (Karia.This energy is necessary for germ growth and reproduction. Biological treatment is accompanied by an effective ventilation process that provides the aquarium with large quantities of air (oxygen) to facilitate the dissolution of the organic matter. After biological treatment, the water is pumped into secondary sedimenta- tion basins, where the remaining solids and living microorganisms descend to the bottom. Finally, advanced treatment might be used in some treatment. It is an additional treatment process, such as filtration, carbon adsorption, and chemical precipitation of phosphorus, to remove those constituents that are not adequately removed in the secondary treatment plant. These materials are called Grit (sand and any coarse material). Finally, it is designed to remove excess amounts of grease or oils. The pre-treatment consists of screens, grit chamber and equalization basin. The general purpose of screens is to remove large objects such as rags, paper, plastics, metals, and the like. These units are used to store and remove large solid materials, hair, fibres, cloth, paper and coarse materials and prevent their entry with sewage to the subsequent treatment stages where they are placed at the beginning of the treatment plants at the entrance of the pumping station to protect the mechanical installations. Usually fine screens are preceded be a preliminary screening for the purpose of protection. Screens may also be classified into manually and mechanically cleaned. For the grit chamber, it is necessary to remove the grits and other materials that are heavier than organic matter, in order to protect moving mechanical equipment and pumps from unne- cessary wear and abrasion. There are different types of grit chambers, rectangular horizontal flow type, detritus tanks, aerated grit chamber, and equalization basins. Jasim, Cogent Engineering (2020), 00: 1723782 Page 6 of 32 Due to the additional retention time, aeration and mixing is required in equalization basins to prevent the raw wastewater from becoming septic and to maintain solids in suspension. After that, biological Treatment (secondary treatment) is needed. Biological waste treatment involves bringing the active microbial growth in contact with wastewater so that they can con- sume the impurities as food. A great variety of microorganisms come into play that include bacteria, protozoa, rotifers, fungi, algae and so forth. These organisms in the presence of oxygen convert the biodegradable organics into carbon dioxide, water, more cell material, and other inert products. Biological treatment process can be achieved by two types of growth: suspended growth biological treatment and attached growth biological treatment. In the methodology section, following steps are involved in the design of wastewater treatment in Al-Hay city as they are considered in the following steps. Firstly, the assessment of water quality is needed. It is important to select of treatment process, so selection is needed. Design of the treatment system is chosen. Some of water quality parameters are investigated too. This diagram expressed the methodology section for WWTP in Al-Hay city is shown in Figure 1. In addition, GPS X modelling has been an important part of carrying out the simulation and testing the design. The GPS X simulation has been done on biological treatment. For calibration of the model, it is needed to evaluate the operation of the plant; it needs to include all physical processes of the scale plant. The GPS X is motivated in a way only for secondary treatment to get results for some physical parameters such as TSS, BOD and COD because our design for Al-hay plant can be specified for a kind of wastewater treatment plant of extended aeration activated sludge system process. 4.1. Introduction Al-Hay City lies in the south of Iraq some (39) kilometres to the south-east of Kut City being situated in the south of Iraq.Due to the master plan of the city the area within the municipality is about (8000), dounum. The city of Al-Hay has an estimated 2014 78,820 capita, and it is expected to grow to 169,984 capita by 2040. 4.2. Climate The climate of Iraq has been classified as continental. However, it is modified by the presence of the Arabian Gulf and especially the Mediterranean Sea, making it in the southern part of the country to resemble the Mediterranean type during the winter. The summer months, from June to September, are completely dry with extremely high tem- peratures and very low relative humilities. In October and November, temperature drops and Figure 1. Flow diagram for wastewater treatment process. Jasim, Cogent Engineering (2020), 00: 1723782 Page 7 of 32 Lowest air temperatures are reached from December to February, with minimum temperatures occasionally below zero. 4.3. Study period and population forecast The population figures for Al-Hay District are based on the 2014 population data obtained from the Central Organization of Statistics and Information Technology of the Ministry of Planning and Development. The planning timeframe used in this study is 22 years, through the year 2040. A growth rate of 3.0 per year has been adopted in accordance with the MMPW standard for water and wastewater facilities planning. Based on the above growth rate, an increase in Al-Hay population based on Table 2 down below over the time period of planning. Consequently, the population of Al-Hay District is projected to increase over the next 22 years. The phase I means the populations in which started from 2018 to 22 years later which is should be at 2030. That means the WWTP starts working in 2018 to 2030 with this quality and parameters. The phase II means the design for WWTP will be started from 2030 to 2040, so the plant will be worked with these parameters and the estimated populations are calculated based on the year that starts with. Indeed, the project of the WWTP is designed to work for 22 years starting from the year with is 2018 to 2030 and the second part to the project to still be working is started from 2030 to 2040. Over the time period of planning in which started with 2014 the population is provided correspond- ing to phase I, which is 2018 going up to phase II which is 2040. Table 2 showed the increasing in the population over the time period of planning in the design. 4.4. Projected wastewater generation The projected wastewater generation is determined based on the population and level of service. The per capita wastewater generation rate is presented in Table 3 shown below for Al-Hay. In Table 3, it displays the projected wastewater generation in which starts with the population of Figure 2. AQ4 ? Arial image for Al-Hay city by Google TM Earth. Table 2. Population projections for Al-Hay sub-district Sub district 2014 2018 2023 2028 2030 2035 2040 Al-Hay 78,820 88,713 102,843 119,223 126,484 146,630 169,984 Sub-total of phase Phase I Phase II Jasim, Cogent Engineering (2020), 00: 1723782 Page 8 of 32 The infiltration is water-entering sewer from ground through defective connections, pipes, pipes joints and manhole wells. Wastewater mains should be designed to carry the projected peak flows that could reach as high as five times the average daily flows, depending on the population served by the wastewater mains. For purposes of this project, peak factors are based on the Babbitt—Herman formula and have been summarized. Jasim, Cogent Engineering (2020), 00: 1723782 Page 9 of 32 Only the first two can meet the established effluent discharge criteria to River Tigris.Waste Stabilization Ponds have the lowest capital and operational costs that can treat the domestic wastewater to the level that complies with the WHO and FAO guidelines for effluent reuse. Because this process is unable to meet the standards, so the extended aeration processes will be adopted for this purpose. Extended Aeration can satisfy the selection criteria requirements for effluent disposal to surface water courses as it has the highest BOD, TSS and Nitrogen removal efficiency and meets the National Iraqi Standards for Wastewater Discharge to surface water courses, in addition to its ability to reduce phosphates considerably with minor upgrading. ? In the Figure 3, it displays a flow chart of conventional treatment plant. Additionally, the effluent standards for the category—Discharge to Streams, were selected from Iraqi National Standards, Table 1 in (Appendix A) is referred to in Act 25 published in the year 1967 from Iraqi Authorities to regulate the Treated Domestic Wastewater be applied to this project. These standards are to be used to determine the performance requirements of the wastewater treatment plants proposed for the Al-Hay City.