eChapters

The basic methods for wastewater sewerage (collection, treatment, and disposal) are as follows:

• Off-site sewerage
• Separate sewerage system
• Combined sewerage system
• On-site sewerage

Many nations have implemented separate sewage systems that transmit sewage and storm water through separate pipelines in order to separate the two. Storm water often does not contribute to a wastewater treatment facility (WWTP). Domestic sewage contains 99.9% or more water. The remaining portion is made up of bacteria

Maintaining a proper acid-base balance is crucial for the health, productivity, and survival of livestock and poultry. The physiological processes that regulate this balance are sensitive to various factors such as diet, environmental conditions, and metabolic disorders. Any disruption can lead to metabolic problems that negatively impact growth, reproduction, immunity, and overall performance. The acid-base balance in animals refers to the maintenance of the blood’s pH within a narrow range, typically 7.35–7.45. It is regulated by three main systems:
Buffer systems
The bicarbonate buffer system is the most significant, comprising bicarbonate ions (HCO3 –) and carbonic acid (H2CO3). It resists rapid pH changes by neutralizing excess acids or bases.
Respiratory regulation
Animals adjust blood pH by modulating the rate and depth of respiration, which affects carbon dioxide (CO2) levels. Increased CO2 leads to acidosis, while decreased CO2 causes alkalosis.
Renal regulation
The kidneys excrete hydrogen ions (H+) and reabsorb bicarbonate, playing a long-term role in maintaining acid-base homeostasis.
Disruptions in these systems can lead to two primary conditions: Acidosis: A state where the blood becomes too acidic (pH < 7.35).
Alkalosis: A condition where the blood becomes too basic (pH > 7.45).
Common metabolic problems.

Bacteria can be defined as a group of diverse and ubiquitous prokaryotic single cell microorganisms. The size of bacteria varies with genera/species. In cocci the diameter varies between 0.5-1 µm. The measurement of bacillus / rod shaped bacteria is 4-8 µm ? 1-1.25 µm. The surface area and volume ratio of bacteria is very high. The nutrients are absorbed through a large surface area and it is rapidly distributed into a small volume. So the growth rate and metabolism of bacteria is very high. The bacterial cell mass is packed near the surface and no circulatory system is required to distribute the nutrients. The growth and metabolism rate of bacilli are more than cocci because surface area and volume ratio of a sphere (cocci) is lowest among all the geometrical forms.

Shape of bacteria

The shape of bacteria is mostly regulated by the rigid cell wall covering the bacteria. Different shapes of bacteria are observed.

4.1 Introduction

Experts predict that the global population will exceed 9.6 billion by 2050. This, coupled with the rise of urbanization, the scarcity of arable land, and the destructive effects of climate change, poses significant challenges for agriculture and food production worldwide. To combat these challenges, new horticultural research techniques must be implemented to enhance productivity and efficiency, improve nutrition, and ensure food security, especially during times of crisis like the COVID-19 pandemic. Greenhouse technology has made remarkable strides in recent years, allowing for the manipulation of internal growth elements like temperature, light intensity, and CO2 concentration to create optimal growing conditions

Introduction

The digestive system and its auxiliary organs main functions include digestion and the absorption of nutrients required for cell metabolic processes. Digestion is the mechanical and chemical or enzymatic breakdown of large nutritional macromolecules into simpler molecules that cells can absorb. It takes place in the aqueous milieu of the digestive system and is secreted by the salivary glands, stomach and mucosal glands, pancreas, and liver.

Digestive enzymes are secreted almost throughout the digestive tract. Salivary enzymes such as lingual lipase and α-amylase initiate the breakdown of fat and carbohydrates in the mouths of young animals (e.g., calves) and omnivores (e.g., rats, pigs, and humans).The optimum pH for oral digestion is 6.7 (6.2-7.6).

The gastric juice contains pepsinogen, HCI, and intrinsic factors. The pepsinogen enzyme is secreted by the stomach’s chief cell. Pepsinogen is converted to pepsin at acidic pH ranges of 2.0 to 3.5 and initiates the digestion of proteins in the stomach of monogastric animals. Also, the stomach’s parietal cells secrete HCI and intrinsic factors. Cyanocobalamin, is a synthetic form of vitamin B₁₂ requires an intrinsic factor in ruminants to be absorbed. The abomasum of young ruminants secretes proteolytic enzymes such as rennin or chymosin. Rennin acts on milk at a pH of 6.5.

Introduction

Climate change is a deadliest hazard to life on Earth. Global temperature is rising due to greenhouse gas emissions from the usage of fossil fuels, this result in widespread agricultural and fisheries failure, the extinction of hundreds of thousands of species, and whole towns becoming uninhabitable (Lindwall, 2022). Rising global temperatures are severely killing humans and trees, forcing half of all species to move, worsening water-borne and respiratory ailments in people, and jeopardising millions’ food and water security (Isaacs-Thomas, 2022). Addressing these concerns necessitates a worldwide collaboration to minimise greenhouse gas emissions and promote sustainable behaviours. Climate change affects agriculture production, lowers crop nutritional value, and increases the frequency of extreme weather events. These interruptions jeopardise food production, availability, and access, especially in vulnerable countries. Microbes play an important role in soil health, nitrogen cycling, and ecosystem stability. They impact a variety of soil activities, such as organic matter breakdown, nutrient mobilisation, and plant growth stimulation. However, climate change poses a substantial danger to microbial communities, possibly changing their activities and altering ecosystem dynamics (Wang et al., 2022). Transitioning to a low-carbon economy requires a global effort. Mitigation strategies include enhancing energy efficiency, adopting renewable energy sources, electrifying industrial processes, implementing efficient transportation systems, and introducing carbon taxes or emissions markets.

7.1 Introduction

The practice of greenhouse management has become a crucial method for extending growing seasons, improving crop quality, and maximizing yield potential in modern agriculture. Shedding and ventilation are critical elements that determine the effectiveness of greenhouse operations. They are pivotal in creating a delicate ecology where plants can find shelter in a controlled environment that protects them from the elements while enabling exact changes to temperature, humidity, and light.

Soil microorganisms immobilize and mineralize various elements to satisfy their growth requirements. The subsequent turnover of microbial biomass also releases several mineral elements. The elements may be released as a result of organic matter decomposition (e.g. during the process of mineralization, ammonification, etc.) or through biological weathering. Other transformations may involve oxidation and reduction of various inorganic ions and compounds which are mostly catalyzed by chemoautotrophic bacteria during oxidation of ammonium, nitrite, sulphur, iron, etc. Such oxidations may also release energy for microbial growth.

11.1. BORON TOXICITY
11.1.1. Introduction

Boron (B) is essential micro-nutrient. It is necessary for cell wall formation, membrane integrity, calcium uptake and carbohydrate synthesis and transportation. B affects many functions in plants, which includes flowering, pollen germination, fruiting, cellular activities (division, differentiation, maturation, respiration etc.), water relationships and the movement of hormones. It is not translocated and leached easily from soils.

Abstract

Landslides are the most common hazards in hilly regions. Rapid development and the resultant uncontrolled interactions with ecosystems are the major reasons for the landslides, besides the rainfall. So, the assessment of landslides hazard vulnerability is a prerequisite before making any developments related to settlements, hill resorts, hydropower projects and the related network of Ghat roads. The present study deals with the assessment of landslides in two different sites; Site-1 located in the Ghat section of Yercaud hills between 10/4 and 29/6 km stones in the southwestern slopes of Shevroy hills, Salem, and the Site-2 located in the Ghat road between Lower camp and Kumuli in Theni districts, Tamil Nadu. The Theni ghat road in the National Highway-220 is connecting Tamil Nadu with Kerala and is the lifeline for Sabarimala, Tekkadi and Munnar. Besides, a series of pan stacks conveying water from Periyar reservoir in Kerala to the power house located at Lower camp in Tamil Nadu also lie in this stretch of hills. Landslide vulnerability mapping was carried out in an area of 130sq.km in Site-1 and 6.7 sq.km in Site-2 by assigning numerical values to the causative factors of slope instability such as lithology, structure, slope morphometery, relative relief, land use and land cover, and ground water conditions following the BIS code No. 14496 (1998) for preparing landslide hazard zonation maps. The study in Yercaud hills revealed that out of 12 slope facets, facet 1 to 6, 9 and 12 fall under moderate landslide hazard zone whereas facets 7, 8, 10, and 11 fall under high hazard zone. The area falling in facets 3, 4 and 5 of Kumuli ghat section fall under high landslide hazard zone, the slope facets 1, 2, 9 and 10 fall in the moderate hazardous zone and other facets in low hazardous zone.

Introduction

Dry-land horticulture has immense potential in providing nutrition rich food, social security and eco-restoration for the inhabitants of desert or rainfed and tribal land-areas of the north-western parts of India. Most of the recent past advances in Indian Horticulture are with production technology for favorable agro-climate, however, the vast and diverse land-scape of hot desert, arid, semiarid and tribal area is yet not getting logical thought for resource based horticultural development. The native crop–plants both annual and perennial are equally playing vital role for food, fodder as well income especially in the hot arid and sem-arid areas of Rajasthan where animal husbandry is also an integral component of the farming system. The monsoon supported arid zone crop-plants are drought tolerant and even the harvest failure in kharif season/ conventional cropping is very high and it is estimated 50–60% in most of the years only because of uncertainty in rain’s pattern. Based on my research experience and SWOT analysis over 25 years, it is accomplished that this hot arid zone has excellent horticultural potential with wide and varied opportunities of crop production, utilization of resources and eco-restoration (Samadia, 2016).

Introduction 
Castor bean (Ricinus communis L.) is a species of annual and perennial flowering plant in the spurge family, Euphorbiaceae (USDA, 2016). It is the sole species in the monotypic genus, Ricinus, and subtribe, Ricininae. The evolution of castor and its relation to other species are currently being studied using modern genetic tools (Institute for Genome Sciences, 2009). Castor reproduces with a mixed pollination system that favors selfing by geitonogamy but can also be pollinated by wind (anemophily) or insects (entomophily) (Rizzardo et al.,2012). Native to the southeastern Mediterranean Basin, Eastern Africa, and India, castor is now widespread throughout tropical regions (Phillips & Rix, 2002). The plant is known for its seeds, which contain 40-60% oil, primarily composed of triglycerides such as ricinolein. However, the seeds also contain ricin, a watersoluble toxin present in lower concentrations throughout the plant. Ricinus communis exhibits significant variability in its growth habit and appearance, with cultivars selected for leaf and flower colours as well as oil production. Castor bean is a fast-growing shrub that can reach up to 12 meters in height, although it is not cold hardy. Its stems spherical, spiny seed capsules also vary in pigmentation. In some varieties, the fruit capsules are more attractive than the flowers. Ongoing research aims to better understand the plant’s evolution and its relationship to other species, while its unique characteristics and diverse uses make it an important subject of study. The monoecious castor plant bears unisexual male and female flowers in terminal panicle-like inflorescences (Fig :1). Male flowers are yellowish-green with creamy stamens, while fewer female flowers have prominent red stigmas (Oliver and Lee, 2010). The spiny capsule fruit contains large, oval, poisonous seeds with a caruncle that aids ant-mediated dispersal. Improving castor bean (Ricinus communis) cultivation for biodiesel production involves a combination of genetic, agronomic, and technological strategies aimed at enhancing yield, oil quality and sustainability. Genetic improvement focuses on developing high-yielding and disease-resistant varieties through traditional breeding, molecular techniques like marker-assisted selection (MAS), and advanced tools such as CRISPR-Cas9 for targeted gene editing. Efforts are directed at optimizing oil content, improving fatty acid profiles for biodiesel, and reducing toxins like ricin. Agronomic practices play a crucial role, including the adoption of efficient planting densities, intercropping systems, and soil and

Calorimetry

The process of measuring  the amount of heat generated by the combustion of a substance is known as calorimetry. The first successful calorimeter using oxygen under pressure for the combustion of substance in a closed vessel was devised by Berthelot in 1881. Subsequent development by Mahler in 1992, Atwater in 1899, and Parr in 1912, served to improve and to reduce the cost of the original Berthelot apparatus by variations in mechanical details.

Introduction

Arid environs are delineated by extreme and harsh weather conditions due to excessive heat and inadequate, variable precipitation; however, contrasts in climate occur. These climatic disparities are the result of temperature variation, distribution and season of rainfall and the degree of aridity. Moreover, high evapo-transpiration, periodic droughts, low organic matter levels, different associations of vegetative cover and soil enhances the problems of these regions. In general, hot arid climates have excessive heat and strong prevailing winds, unhampered by obstacles on the ground and as result aeolian erosion is common with frequent seasonal drought occurrence (Sharma and Tewari 2005). These climatic limitations make very difficult place for the inhabitants to attain their livelihood. People of these areas have spent their life within these constraints for centuries. They have faced serious challenges due to lack of sufficient resources and very low productivity which has added to the vulnerability of the region. 

Case Study    :    Orissa Super Cyclone 1999

To constantly move towards advancement, points towards the addition to the tradition that converts to modernization. Today with the drawing waves risking health and diet of an individual, there is a constant demand of rolling back the traditional grains which lost its significance with the turning over of era. Family Amaranthaceae for a long time with the turn of events existed among the staple diets of people in different regions of Asia as China, Africa, America and some parts of India due to its complementary effects with different cuisines as well as the nutrient fulfillment (Olawuyi et al., 2016).

1. Tree improvement consists of_____________ and_____________. (Silviculture and tree breading)
2. Variation within the local progenies is due to_____________. (Environment)
3. Larger units of similar vegetation are referred as_____________. (Biome)
4. _____________ is the only gaseous hormone. (Ethylene)
5. More genetic gain can be achieved in the_____________ seed orchard. (Clonal)
6. _____________ is known as father of genetics. (Mendel)
7. Pure line theory was proposed by_____________. (Johannsen)
8. Self-incompatibility hampers the development of_____________. (Inbreds)
9. Progeny having both parent identities is known as_____________. (Fullsib)

Organizations operating in an interconnected global economy must consistently deliver reliable products and services while satisfying demanding customer and regulatory expectations. Internationally recognized standards and industry best practices provide structured frameworks for preventing defects, measuring performance and achieving continual improvement. They strengthen customer confidence, regulatory compliance, operational effectiveness and global competitiveness. This chapter introduces major quality-management systems and demonstrates their practical application across different industries. Particular attention is given to the ISO 9000 family and ISO 9001, which establish principles and requirements for formal quality-management systems. Important practices include risk-based thinking, process management, documentation, customer focus, evidence-based decisions and the continual improvement of organizational processes

The global importance of cereal crops to the human diet and moreover to the written history of man and agriculture cannot be overstated. Cereal grains are the fruit of plants belonging to the grass family (Gramineae) most important group of food crops produced in the world. Nutritionally, they are important sources of dietary protein, carbohydrates, complex vitamin B, vitamin E, iron, trace of minerals, and fiber. It has been estimated that global cereal consumption directly provides about 50 per cent of protein and energy necessary for the human diet. Some cereals, notably wheat, contain proteins that form gluten, which is essential for making bread. Major cereal crops produced worldwide include wheat, rice and maize. Wheat, rice, maize, sorghum, and millet are produced in large quantities in India.

Integrated Disease Management

Disease control is, managing the plant disease severity below the economic threshold following economically viable, eco-friendly and easily operational procedures. The position of IDM in the overall agricultural system indicates clearly that it is an important sub-system and interacts with other such systems that fall under the cropping system.

N    :    Avogadro’s number.

N    :    Nano (10^-9m).

N&M    :    Nerves and muscles.
   
N&T    :    Nose and throat.

N&V    :    Nausea and vomiting.
    
NA    :    Nucleic acid.