Advances in Biological Wastewater Treatment Systems covers different recent advanced technologies, including green technologies, for biological wastewater treatment and wastewater reuse. The technologies involve novel biological processes and/or modified processes coupled with nano materials for improving the performance of the existing treatment processes. The book also describes treatment strategies for the current pollution from complex organic matter, nutrients, toxic substances, micro plastics and emerging micro pollutants in different water resources. The treatment processes describe the recent developed technologies for wastewater treatment and reuse such as biological nutrient removal, bioreactors, photobioreactors, membrane bioreactors, wetlands, algae-bacteria process, natural treatments, integrated/hybrid bio systems, etc. The novel bio systems include aerobic, anaerobic, facultative operation modes with various of types of microorganisms.

Multi-channel estuaries, such as the Mekong Delta in Vietnam and the Scheldt in the Netherlands, have characteristics of both the river and the sea, forming a unique environment influenced by tidal movements of the sea and freshwater flow of the river. This study addresses a number of knowledge gaps in multi-channel estuaries by developing a predictive analytical approach for salinity intrusion and discharge estimate in multi-channel estuaries. The new approach agrees well with 1-D hydrodynamic models and observations, indicating its applicability in practice. Most importantly, the study has successfully developed a new theory and a new equation to quantify tidal pumping due to ebb-flood channel residual circulation and the related salt dispersion.

Multi-channel estuaries, such as the Mekong Delta in Vietnam and the Scheldt in the Netherlands, have characteristics of both the river and the sea, forming a unique environment influenced by tidal movements of the sea and freshwater flow of the river. This study addresses a number of knowledge gaps in multi-channel estuaries by developing a predictive analytical approach for salinity intrusion and discharge estimate in multi-channel estuaries. The new approach agrees well with 1-D hydrodynamic models and observations, indicating its applicability in practice. Most importantly, the study has successfully developed a new theory and a new equation to quantify tidal pumping due to ebb-flood channel residual circulation and the related salt dispersion.

Hi, there! I'm a red-eyed tree frog. You might think red eyes would make me stand out, but my green skin helps me blend in with my surroundings. Learn more about my life cycle and how I went from a teeny tiny tadpole to a full-grown frog.

Engaging fiction and non-fiction fully aligned to each stage of the Floppy's Phonics teaching programme, allowing children to consolidate their phonic knowledge through reading in context. These fully decodable stories are 100% matched to the phonic progression of the Floppy's Phonics teaching programme and provide a perfect fit with your phonics teaching - endorsed by phonics expert and trainer Debbie Hepplewhite. They consolidate taught GPCs at each stage of the programme, with one book covering two weeks of teaching, and can be used in class or as take-home readers. Support for parents and carers is provided on the inside cover notes. Levels 1+-2 consist of simple blending books and short texts. Levels 3-5 include 3 fiction (with one Biff, Chip and Kipper adventure) and 3 non-fiction per level. Sharky has a pain in her tooth. Can Floss help?

Hi, there! I'm a red-eyed tree frog. You might think red eyes would make me stand out, but my green skin helps me blend in with my surroundings. Learn more about my life cycle and how I went from a teeny tiny tadpole to a full-grown frog.

Once teeming with plants and animals, our ocean is no longer in good shape. It's warming up and becoming a dumping ground for plastic rubbish. But it doesn't have to be that way! There are all sorts of clever things that we can do to make life in the ocean healthy again.

In 1968 Nguyen Qui Duc was nine years old, his father was a high-ranking civil servant in the South Vietnamese government, and his mother was a school principal. Then the Viet Cong launched their Tet offensive, and the Nguyen family's comfortable life was destroyed. The author's father was taken prisoner and marched up the Ho Chi Minh Trail. North Vietnam's highest-ranking civilian prisoner, he eventually spent twelve years in captivity, composing poems in his head to maintain his sanity. Nguyen himself escaped from Saigon as North Vietnamese tanks approached in 1975. He came of age as an American teenager, going to school dances and working at a Roy Rogers restaurant, yet yearning for the homeland and parents he had to leave behind. The author's mother stayed in Vietnam to look after her mentally ill daughter. She endured poverty and "reeducation" until her husband was freed and the Nguyens could reunite. Intertwining these three stories, "Where the Ashes Are" shows us the Vietnam War through a child's eyes, privation after a Communist takeover, and the struggle of new immigrants. The author, who returned to Vietnam as an American reporter, provides a detailed portrait of the nation as it opened to the West in the early 1990s. "Where the Ashes Are" closes with Nguyen's thoughts on being pulled between his adopted country and his homeland.